<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:41edc8a4-ff44-4515-9195-21624a467826,g:4f4e85b2-f73b-48ac-8e5e-b5bf1d863ea3-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="fcfs-20251231.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_6fb193c0-401d-4394-b1c7-f32c889b4319" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_f74057a4-e1ee-47e9-969a-0026e6cdab8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_6fb193c0-401d-4394-b1c7-f32c889b4319" xlink:to="loc_us-gaap_StatementTable_f74057a4-e1ee-47e9-969a-0026e6cdab8a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_4563cd8c-1155-4b75-a1c2-769a90be083f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_f74057a4-e1ee-47e9-969a-0026e6cdab8a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_4563cd8c-1155-4b75-a1c2-769a90be083f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_4563cd8c-1155-4b75-a1c2-769a90be083f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4563cd8c-1155-4b75-a1c2-769a90be083f" xlink:to="loc_us-gaap_EquityComponentDomain_4563cd8c-1155-4b75-a1c2-769a90be083f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4563cd8c-1155-4b75-a1c2-769a90be083f" xlink:to="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_c98d51a7-6a5f-4569-ae08-33c81dd9ffd4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:to="loc_us-gaap_CommonStockMember_c98d51a7-6a5f-4569-ae08-33c81dd9ffd4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_acfa8b44-d4d2-48ae-a54e-f34d6848260e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_acfa8b44-d4d2-48ae-a54e-f34d6848260e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_9448edbc-03de-49d8-ad57-ab2d8b6325e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:to="loc_us-gaap_RetainedEarningsMember_9448edbc-03de-49d8-ad57-ab2d8b6325e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_25c152a1-054a-4f60-9407-b043de6d674a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_25c152a1-054a-4f60-9407-b043de6d674a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_8ca5cbb6-81e1-45e1-baa4-724da98ded65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_76c4ea21-ea39-4d66-870b-c5862c9ca801" xlink:to="loc_us-gaap_TreasuryStockCommonMember_8ca5cbb6-81e1-45e1-baa4-724da98ded65" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6fb193c0-401d-4394-b1c7-f32c889b4319" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019c2a8c-75d2-7e67-9968-40c6b85c7c9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019c2a8c-75d2-7e67-9968-40c6b85c7c9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019c2a89-70e9-72ec-adc9-3ca6f089471e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019c2a89-70e9-72ec-adc9-3ca6f089471e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8c135322-2260-445d-bb61-04740ce08ed8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8c135322-2260-445d-bb61-04740ce08ed8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_7b86786a-d05b-45c7-b937-6ad8d4d81124" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_7b86786a-d05b-45c7-b937-6ad8d4d81124" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_d9896dcf-11a2-46de-9ae0-a83d9f2be642" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_d9896dcf-11a2-46de-9ae0-a83d9f2be642" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_385fa10f-6aec-4bf9-a362-8125341ef6d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_385fa10f-6aec-4bf9-a362-8125341ef6d9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_1f5308ce-41ea-4b8c-8822-d63935a949a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_1f5308ce-41ea-4b8c-8822-d63935a949a4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_fa787c49-9c17-416c-bf69-f6bcd89be281" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_fa787c49-9c17-416c-bf69-f6bcd89be281" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b6138e05-482f-446b-b704-c1571e83c206" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_NetIncomeLoss_b6138e05-482f-446b-b704-c1571e83c206" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_04eb3ddb-cfad-4a1a-9da0-c7d931ac69df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Dividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_Dividends_04eb3ddb-cfad-4a1a-9da0-c7d931ac69df" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_216267dc-fb67-4a21-a2ca-3f07321ae0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_216267dc-fb67-4a21-a2ca-3f07321ae0f5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_e8f2ad1e-8b6e-4fce-94c5-5db14540a254" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_e8f2ad1e-8b6e-4fce-94c5-5db14540a254" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_9fe2527b-61ab-4aae-958b-153c33efadce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_74d9f992-3163-42cd-a7f3-7a007758edcf" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_9fe2527b-61ab-4aae-958b-153c33efadce" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019c2a8d-d3e9-717e-8217-b22ade3be132" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019c2a8a-ab4d-73cb-92aa-a1f8a3388287" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_93169c22-2a6e-47c0-b500-06971b5b0da2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019c3391-c292-72ea-a8f2-ae947af7b872" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6fb193c0-401d-4394-b1c7-f32c889b4319" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019c3391-c292-72ea-a8f2-ae947af7b872" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/OrganizationandNatureoftheCompanyDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#OrganizationandNatureoftheCompanyDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/OrganizationandNatureoftheCompanyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OrganizationAndNatureOfCompanyLineItems_377bc1fb-e2f6-4b3c-a68d-a94435958b7d" xlink:href="fcfs-20251231.xsd#fcfs_OrganizationAndNatureOfCompanyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OrganizationAndNatureOfCompanyTable_924c18d6-13f0-4c6e-8206-9fd15bb1ad31" xlink:href="fcfs-20251231.xsd#fcfs_OrganizationAndNatureOfCompanyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_fcfs_OrganizationAndNatureOfCompanyLineItems_377bc1fb-e2f6-4b3c-a68d-a94435958b7d" xlink:to="loc_fcfs_OrganizationAndNatureOfCompanyTable_924c18d6-13f0-4c6e-8206-9fd15bb1ad31" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessLinesAxis_54308af8-3c7e-4461-b0cd-bbc15e1acec8" xlink:href="fcfs-20251231.xsd#fcfs_BusinessLinesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_OrganizationAndNatureOfCompanyTable_924c18d6-13f0-4c6e-8206-9fd15bb1ad31" xlink:to="loc_fcfs_BusinessLinesAxis_54308af8-3c7e-4461-b0cd-bbc15e1acec8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessLinesDomain_54308af8-3c7e-4461-b0cd-bbc15e1acec8_default" xlink:href="fcfs-20251231.xsd#fcfs_BusinessLinesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_fcfs_BusinessLinesAxis_54308af8-3c7e-4461-b0cd-bbc15e1acec8" xlink:to="loc_fcfs_BusinessLinesDomain_54308af8-3c7e-4461-b0cd-bbc15e1acec8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessLinesDomain_cd53b776-4b40-4fbf-b766-417f5f5874d5" xlink:href="fcfs-20251231.xsd#fcfs_BusinessLinesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_fcfs_BusinessLinesAxis_54308af8-3c7e-4461-b0cd-bbc15e1acec8" xlink:to="loc_fcfs_BusinessLinesDomain_cd53b776-4b40-4fbf-b766-417f5f5874d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnOperationsMember_bbcb2063-15b6-410b-9cf7-2b67168f3dd3" xlink:href="fcfs-20251231.xsd#fcfs_PawnOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_BusinessLinesDomain_cd53b776-4b40-4fbf-b766-417f5f5874d5" xlink:to="loc_fcfs_PawnOperationsMember_bbcb2063-15b6-410b-9cf7-2b67168f3dd3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RetailPOSPaymentSolutionsMember_3fa100db-bd96-44d2-a054-fa8f627215b1" xlink:href="fcfs-20251231.xsd#fcfs_RetailPOSPaymentSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_BusinessLinesDomain_cd53b776-4b40-4fbf-b766-417f5f5874d5" xlink:to="loc_fcfs_RetailPOSPaymentSolutionsMember_3fa100db-bd96-44d2-a054-fa8f627215b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NumberOfBusinessLines_343c1969-ea38-433b-85cd-f55687199853" xlink:href="fcfs-20251231.xsd#fcfs_NumberOfBusinessLines"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OrganizationAndNatureOfCompanyLineItems_377bc1fb-e2f6-4b3c-a68d-a94435958b7d" xlink:to="loc_fcfs_NumberOfBusinessLines_343c1969-ea38-433b-85cd-f55687199853" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_d8284be9-3993-4a78-a9fd-a16227f30851" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OrganizationAndNatureOfCompanyLineItems_377bc1fb-e2f6-4b3c-a68d-a94435958b7d" xlink:to="loc_us-gaap_NumberOfReportableSegments_d8284be9-3993-4a78-a9fd-a16227f30851" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfStatesInWhichEntityOperates_b17709aa-cf86-4bed-9bee-89c91ae020d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfStatesInWhichEntityOperates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OrganizationAndNatureOfCompanyLineItems_377bc1fb-e2f6-4b3c-a68d-a94435958b7d" xlink:to="loc_us-gaap_NumberOfStatesInWhichEntityOperates_b17709aa-cf86-4bed-9bee-89c91ae020d3" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#SummaryofSignificantAccountingPoliciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_d16028c4-f10a-4094-9e4e-f40736ad8196" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_d16028c4-f10a-4094-9e4e-f40736ad8196" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_0fc81886-8f31-40ba-b5aa-2ae72493a507" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_d16028c4-f10a-4094-9e4e-f40736ad8196" xlink:to="loc_srt_RangeAxis_0fc81886-8f31-40ba-b5aa-2ae72493a507" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0fc81886-8f31-40ba-b5aa-2ae72493a507_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_0fc81886-8f31-40ba-b5aa-2ae72493a507" xlink:to="loc_srt_RangeMember_0fc81886-8f31-40ba-b5aa-2ae72493a507_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_71469b60-1fc3-41e4-8f13-a13a93bb3abb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_0fc81886-8f31-40ba-b5aa-2ae72493a507" xlink:to="loc_srt_RangeMember_71469b60-1fc3-41e4-8f13-a13a93bb3abb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_6e0d6415-f7b7-4e2c-9766-41a99a4a1fdf" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_71469b60-1fc3-41e4-8f13-a13a93bb3abb" xlink:to="loc_srt_MinimumMember_6e0d6415-f7b7-4e2c-9766-41a99a4a1fdf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_a8e02a40-6d76-463f-80ef-ad0e4b2ef2f0" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_71469b60-1fc3-41e4-8f13-a13a93bb3abb" xlink:to="loc_srt_MaximumMember_a8e02a40-6d76-463f-80ef-ad0e4b2ef2f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_35ee6d93-c2dd-4370-952c-59e8dca5f3d6" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_d16028c4-f10a-4094-9e4e-f40736ad8196" xlink:to="loc_srt_CurrencyAxis_35ee6d93-c2dd-4370-952c-59e8dca5f3d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_35ee6d93-c2dd-4370-952c-59e8dca5f3d6_default" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_35ee6d93-c2dd-4370-952c-59e8dca5f3d6" xlink:to="loc_currency_AllCurrenciesDomain_35ee6d93-c2dd-4370-952c-59e8dca5f3d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_35ee6d93-c2dd-4370-952c-59e8dca5f3d6" xlink:to="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_MXN_61590ce1-20e9-4345-8333-a9e1a5a6dc57" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_MXN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:to="loc_currency_MXN_61590ce1-20e9-4345-8333-a9e1a5a6dc57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD_00bbf8e5-ae32-4bfd-8be6-015239bba891" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_USD"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:to="loc_currency_USD_00bbf8e5-ae32-4bfd-8be6-015239bba891" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_GTQ_3366b7e3-6018-4f6f-b157-692cf783248e" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_GTQ"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:to="loc_currency_GTQ_3366b7e3-6018-4f6f-b157-692cf783248e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_COP_60225506-e8cb-49aa-ae63-65eaebaaa96d" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_COP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:to="loc_currency_COP_60225506-e8cb-49aa-ae63-65eaebaaa96d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_GBP_019c3394-62bc-7ded-97d4-e0df3a2dbd94" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_GBP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_a8e4360f-4cb6-47d1-a1d8-b6024ebf011a" xlink:to="loc_currency_GBP_019c3394-62bc-7ded-97d4-e0df3a2dbd94" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList_a5aade46-5858-4d57-836a-eaaed843baa8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList_a5aade46-5858-4d57-836a-eaaed843baa8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Cashassociatedwithundistributedearningsofforeignsubsidiaries_bc150c5a-1042-4013-b5fd-60ef88884ff4" xlink:href="fcfs-20251231.xsd#fcfs_Cashassociatedwithundistributedearningsofforeignsubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_Cashassociatedwithundistributedearningsofforeignsubsidiaries_bc150c5a-1042-4013-b5fd-60ef88884ff4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseContractRange_57478f33-53f6-43a5-b252-01017c6c4e30" xlink:href="fcfs-20251231.xsd#fcfs_LeasedMerchandiseContractRange"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_LeasedMerchandiseContractRange_57478f33-53f6-43a5-b252-01017c6c4e30" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseDepreciationOverLifeOfLeaseSalvageValue_63f491c4-578b-478d-971a-245e1d9a2de2" xlink:href="fcfs-20251231.xsd#fcfs_LeasedMerchandiseDepreciationOverLifeOfLeaseSalvageValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_LeasedMerchandiseDepreciationOverLifeOfLeaseSalvageValue_63f491c4-578b-478d-971a-245e1d9a2de2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseThresholdPeriodPastDueWriteoff_69e8313e-75f3-4949-abf5-f741f3fdd3f4" xlink:href="fcfs-20251231.xsd#fcfs_LeasedMerchandiseThresholdPeriodPastDueWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_LeasedMerchandiseThresholdPeriodPastDueWriteoff_69e8313e-75f3-4949-abf5-f741f3fdd3f4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinanceReceivableContractRange_a7eea397-81af-4852-a0c1-da8d538500a8" xlink:href="fcfs-20251231.xsd#fcfs_FinanceReceivableContractRange"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_FinanceReceivableContractRange_a7eea397-81af-4852-a0c1-da8d538500a8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss_a791dab7-52a3-4d30-ac10-efb28a1055da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss_a791dab7-52a3-4d30-ac10-efb28a1055da" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinanceReceivablePeriodForEarlyPayoffDiscount_93edd61d-91e9-4f4c-8288-291f949ce521" xlink:href="fcfs-20251231.xsd#fcfs_FinanceReceivablePeriodForEarlyPayoffDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_fcfs_FinanceReceivablePeriodForEarlyPayoffDiscount_93edd61d-91e9-4f4c-8288-291f949ce521" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableThresholdPeriodPastDueWriteoff_d44ce5bf-385b-4822-911c-fcc48815f104" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableThresholdPeriodPastDueWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_FinancingReceivableThresholdPeriodPastDueWriteoff_d44ce5bf-385b-4822-911c-fcc48815f104" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_c03cbcf0-e794-4b98-8376-0f4c7578c9aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_c03cbcf0-e794-4b98-8376-0f4c7578c9aa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_dd521607-869d-4cc9-8923-90d46282f41d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_fb011dcd-f5ed-4038-99c0-429c1bc1b01e" xlink:to="loc_us-gaap_AdvertisingExpense_dd521607-869d-4cc9-8923-90d46282f41d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_4a55596b-fb8f-4b8f-adcf-c9a3dfee39af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_a18c6b9c-be66-4340-ba8d-98242ae19d90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_4a55596b-fb8f-4b8f-adcf-c9a3dfee39af" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_a18c6b9c-be66-4340-ba8d-98242ae19d90" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f554404a-7d74-4f5f-905a-aca83a6da2f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_a18c6b9c-be66-4340-ba8d-98242ae19d90" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f554404a-7d74-4f5f-905a-aca83a6da2f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f554404a-7d74-4f5f-905a-aca83a6da2f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f554404a-7d74-4f5f-905a-aca83a6da2f8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f554404a-7d74-4f5f-905a-aca83a6da2f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69b3b9f8-596e-43fc-8332-9d37cf351786" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f554404a-7d74-4f5f-905a-aca83a6da2f8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69b3b9f8-596e-43fc-8332-9d37cf351786" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_63eec0ca-b529-499d-8269-a9162f8b78de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69b3b9f8-596e-43fc-8332-9d37cf351786" xlink:to="loc_us-gaap_BuildingMember_63eec0ca-b529-499d-8269-a9162f8b78de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentMember_3c6446d3-1713-4000-ac74-66ef46494e78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69b3b9f8-596e-43fc-8332-9d37cf351786" xlink:to="loc_us-gaap_EquipmentMember_3c6446d3-1713-4000-ac74-66ef46494e78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_88266d81-dec5-421b-9411-1401ee6ee550" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_a18c6b9c-be66-4340-ba8d-98242ae19d90" xlink:to="loc_srt_RangeAxis_88266d81-dec5-421b-9411-1401ee6ee550" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_88266d81-dec5-421b-9411-1401ee6ee550_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_f92c6bef-3413-46a7-9c26-a3c05cd2696b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_cbf327cc-e5f8-440d-b892-1cb62d54990a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_563c6259-3444-4713-9170-7e6c2e7e46c7" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_ca17ae8f-6c32-4558-a6e0-774feebef99a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_4a55596b-fb8f-4b8f-adcf-c9a3dfee39af" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_ca17ae8f-6c32-4558-a6e0-774feebef99a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/AcquisitionsNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#AcquisitionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/AcquisitionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1cefbf1e-7895-4b1c-80ca-48efc3963f40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1cefbf1e-7895-4b1c-80ca-48efc3963f40" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_55334f92-6af3-46c0-becf-d0b5b0bbd39a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1cefbf1e-7895-4b1c-80ca-48efc3963f40" xlink:to="loc_srt_StatementGeographicalAxis_55334f92-6af3-46c0-becf-d0b5b0bbd39a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_55334f92-6af3-46c0-becf-d0b5b0bbd39a_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_55334f92-6af3-46c0-becf-d0b5b0bbd39a" xlink:to="loc_srt_SegmentGeographicalDomain_55334f92-6af3-46c0-becf-d0b5b0bbd39a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_f51336e9-2146-4194-a544-447fb43d0792" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_55334f92-6af3-46c0-becf-d0b5b0bbd39a" xlink:to="loc_srt_SegmentGeographicalDomain_f51336e9-2146-4194-a544-447fb43d0792" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_bd47193e-2abe-463e-82f0-a836dae16bb5" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_f51336e9-2146-4194-a544-447fb43d0792" xlink:to="loc_country_US_bd47193e-2abe-463e-82f0-a836dae16bb5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_NV_019c2a09-abae-7cf4-a2d7-22a468b3338e" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_NV"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_country_US_bd47193e-2abe-463e-82f0-a836dae16bb5" xlink:to="loc_stpr_NV_019c2a09-abae-7cf4-a2d7-22a468b3338e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_019c2a09-2c7c-7265-9aa2-a00b7b9f1c99" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_f51336e9-2146-4194-a544-447fb43d0792" xlink:to="loc_country_MX_019c2a09-2c7c-7265-9aa2-a00b7b9f1c99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_dc41cf23-33ac-414a-9c52-e3890c5b2c6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1cefbf1e-7895-4b1c-80ca-48efc3963f40" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_dc41cf23-33ac-414a-9c52-e3890c5b2c6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_dc41cf23-33ac-414a-9c52-e3890c5b2c6c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_dc41cf23-33ac-414a-9c52-e3890c5b2c6c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_dc41cf23-33ac-414a-9c52-e3890c5b2c6c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_dc41cf23-33ac-414a-9c52-e3890c5b2c6c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_HTAcquisitionMember_019c2a01-6f21-791b-9983-95c8c56e4bd7" xlink:href="fcfs-20251231.xsd#fcfs_HTAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:to="loc_fcfs_HTAcquisitionMember_019c2a01-6f21-791b-9983-95c8c56e4bd7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2025U.S.PawnAcquisitionsMember_1b0512f3-273e-4976-b5a5-337c3c365b57" xlink:href="fcfs-20251231.xsd#fcfs_A2025U.S.PawnAcquisitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:to="loc_fcfs_A2025U.S.PawnAcquisitionsMember_1b0512f3-273e-4976-b5a5-337c3c365b57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2025CombinedPawnAcqusitionsMember_019c2a06-6441-7910-bfe4-a8194c1ddaf1" xlink:href="fcfs-20251231.xsd#fcfs_A2025CombinedPawnAcqusitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:to="loc_fcfs_A2025CombinedPawnAcqusitionsMember_019c2a06-6441-7910-bfe4-a8194c1ddaf1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2024PawnAcquisitionsMember_019c2a06-fe17-75c3-b111-fb68dcf56e24" xlink:href="fcfs-20251231.xsd#fcfs_A2024PawnAcquisitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e0878366-91a2-4e70-b0aa-c47fabeb8fdb" xlink:to="loc_fcfs_A2024PawnAcquisitionsMember_019c2a06-fe17-75c3-b111-fb68dcf56e24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c2a02-204a-7332-8532-964e6e42154a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c2a02-204a-7332-8532-964e6e42154a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019c2a02-204a-7561-8890-179b9c3559e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019c2a02-204a-7561-8890-179b9c3559e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019c2a02-204a-7cf6-9b8c-04a090af4583" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019c2a02-204a-7cf6-9b8c-04a090af4583" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NumberOfStoresAcquired_f5dc2302-1bf7-4514-97f1-75bf64680ace" xlink:href="fcfs-20251231.xsd#fcfs_NumberOfStoresAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_fcfs_NumberOfStoresAcquired_f5dc2302-1bf7-4514-97f1-75bf64680ace" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NumberOfAcquisitions_73b9145f-7c3e-417c-87db-e14a714b7634" xlink:href="fcfs-20251231.xsd#fcfs_NumberOfAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_fcfs_NumberOfAcquisitions_73b9145f-7c3e-417c-87db-e14a714b7634" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019c2a03-19e6-742e-8c82-933e8744be3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019c2a03-19e6-742e-8c82-933e8744be3d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019c2a03-19e6-7108-beb1-5d4d8a7974b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019c2a03-19e6-7108-beb1-5d4d8a7974b0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019c2a03-19e6-7116-9d60-301db2418538" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019c2a03-19e6-7116-9d60-301db2418538" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForPreviousAcquisition_019c2a03-19e6-7d26-8f6f-a6be91efd1c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForPreviousAcquisition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_PaymentsForPreviousAcquisition_019c2a03-19e6-7d26-8f6f-a6be91efd1c1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_019c2a03-3994-7e67-9297-41d54178c3b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_019c2a03-3994-7e67-9297-41d54178c3b2" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019c2a03-3994-7412-9f2b-fb9979ed00bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019c2a03-3994-7412-9f2b-fb9979ed00bf" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_019c2a03-3994-73e8-83ab-16cc25e98248" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_019c2a03-3994-73e8-83ab-16cc25e98248" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NumberOfPawnLicenses_019c2a03-3994-741f-9d33-7b70c576cbdb" xlink:href="fcfs-20251231.xsd#fcfs_NumberOfPawnLicenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_fcfs_NumberOfPawnLicenses_019c2a03-3994-741f-9d33-7b70c576cbdb" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019c2a03-3994-78aa-8ad3-8990108690de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_019c2a03-3994-78aa-8ad3-8990108690de" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_019c2ec2-59f8-747e-bc2d-6a27ad90ae89" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1ea2de4a-d5bb-4316-8ec4-1846de229330" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_019c2ec2-59f8-747e-bc2d-6a27ad90ae89" xlink:type="arc" order="14"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/AcquisitionsAcquisitionsPurchasePriceAllocationTableDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#AcquisitionsAcquisitionsPurchasePriceAllocationTableDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/AcquisitionsAcquisitionsPurchasePriceAllocationTableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2a90aa6c-4d31-4960-90b9-2df7991206c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2a90aa6c-4d31-4960-90b9-2df7991206c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2a90aa6c-4d31-4960-90b9-2df7991206c9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2a90aa6c-4d31-4960-90b9-2df7991206c9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2a90aa6c-4d31-4960-90b9-2df7991206c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_14e8fc44-137a-4c29-a10a-c2a53c5e9519" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2a90aa6c-4d31-4960-90b9-2df7991206c9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_14e8fc44-137a-4c29-a10a-c2a53c5e9519" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_HTAcquisitionMember_019c29ff-b795-71e3-ba6c-34c0acd233f9" xlink:href="fcfs-20251231.xsd#fcfs_HTAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_14e8fc44-137a-4c29-a10a-c2a53c5e9519" xlink:to="loc_fcfs_HTAcquisitionMember_019c29ff-b795-71e3-ba6c-34c0acd233f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2025U.S.PawnAcquisitionsMember_019c2a1e-3242-7666-ae75-c268507f764e" xlink:href="fcfs-20251231.xsd#fcfs_A2025U.S.PawnAcquisitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_14e8fc44-137a-4c29-a10a-c2a53c5e9519" xlink:to="loc_fcfs_A2025U.S.PawnAcquisitionsMember_019c2a1e-3242-7666-ae75-c268507f764e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_8a901683-c58f-4103-874c-e5e72238808e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:to="loc_srt_StatementGeographicalAxis_8a901683-c58f-4103-874c-e5e72238808e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_8a901683-c58f-4103-874c-e5e72238808e_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_8a901683-c58f-4103-874c-e5e72238808e" xlink:to="loc_srt_SegmentGeographicalDomain_8a901683-c58f-4103-874c-e5e72238808e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_d8bd3b1d-0a60-429f-a0b4-47f59d2154ee" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_8a901683-c58f-4103-874c-e5e72238808e" xlink:to="loc_srt_SegmentGeographicalDomain_d8bd3b1d-0a60-429f-a0b4-47f59d2154ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_5ca535d3-09de-4e74-8ac8-38da84505811" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d8bd3b1d-0a60-429f-a0b4-47f59d2154ee" xlink:to="loc_country_US_5ca535d3-09de-4e74-8ac8-38da84505811" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_aab5c47e-dc19-4309-94a0-190319d7d844" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d8bd3b1d-0a60-429f-a0b4-47f59d2154ee" xlink:to="loc_country_MX_aab5c47e-dc19-4309-94a0-190319d7d844" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-71b9-8d26-abdf6b596968" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-71b9-8d26-abdf6b596968" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-71b9-8d26-abdf6b596968_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-71b9-8d26-abdf6b596968" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-71b9-8d26-abdf6b596968_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-7608-be84-714ebf92d1c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-71b9-8d26-abdf6b596968" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-7608-be84-714ebf92d1c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_019c2a22-414d-7d10-9264-fb21cb7ba0d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-7608-be84-714ebf92d1c0" xlink:to="loc_us-gaap_TradeNamesMember_019c2a22-414d-7d10-9264-fb21cb7ba0d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-76b1-92ab-6f1896e4831c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5a943d50-d9f0-43cd-8fad-5d3c11cfbcc9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-76b1-92ab-6f1896e4831c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-76b1-92ab-6f1896e4831c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-76b1-92ab-6f1896e4831c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-76b1-92ab-6f1896e4831c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-78d6-8040-4f3e93663fac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019c2a22-414d-76b1-92ab-6f1896e4831c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-78d6-8040-4f3e93663fac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_019c2a22-414d-7c50-8f31-99cf554870f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-78d6-8040-4f3e93663fac" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_019c2a22-414d-7c50-8f31-99cf554870f3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_019c2a22-414d-7714-8ab3-7add9f816495" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019c2a22-414d-78d6-8040-4f3e93663fac" xlink:to="loc_us-gaap_CustomerRelationshipsMember_019c2a22-414d-7714-8ab3-7add9f816495" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019c2a00-0121-7453-954a-23c3c17c72d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019c2a00-0121-7453-954a-23c3c17c72d6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPawnLoans_019c2a00-0121-7c0b-9f7d-c2633b297ccb" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPawnLoans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPawnLoans_019c2a00-0121-7c0b-9f7d-c2633b297ccb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019c2a00-0121-78f3-a95c-e99484c20f27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019c2a00-0121-78f3-a95c-e99484c20f27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019c2a00-0121-77b1-980b-cd136e6da57b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_019c2a00-0121-77b1-980b-cd136e6da57b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_019c2a00-0121-7449-83ab-52f01e271b25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_019c2a00-0121-7449-83ab-52f01e271b25" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019c2a00-0121-7b78-a210-1e23e9124308" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019c2a00-0121-7b78-a210-1e23e9124308" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssset_019c2a00-0121-7f04-9093-00f44e51b0d4" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssset_019c2a00-0121-7f04-9093-00f44e51b0d4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c2a00-0121-727f-9f1e-4f6a514ed780" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_Goodwill_019c2a00-0121-727f-9f1e-4f6a514ed780" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019c2a00-0121-78c2-892c-355904ac0413" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019c2a00-0121-78c2-892c-355904ac0413" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019c2a00-0121-78fa-a3db-2b5b4b195c36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019c2a00-0121-78fa-a3db-2b5b4b195c36" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDepositsAndPrepayments_019c2a00-0121-7707-bfc9-137b8f79b4fa" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDepositsAndPrepayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDepositsAndPrepayments_019c2a00-0121-7707-bfc9-137b8f79b4fa" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityCurrent_019c2a00-0121-744b-a3e0-9f14e2fcf7c7" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_fcfs_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityCurrent_019c2a00-0121-744b-a3e0-9f14e2fcf7c7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019c2a00-0121-75c6-af8b-aaf184118376" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_019c2a00-0121-75c6-af8b-aaf184118376" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019c2a00-0121-73a5-8bea-aa0a4c71c468" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019c2a00-0121-73a5-8bea-aa0a4c71c468" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeaseLiabilityNonCurrentBusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityNoncurrent_019c2a00-0121-7ac4-a6f9-28e575d8fd64" xlink:href="fcfs-20251231.xsd#fcfs_LeaseLiabilityNonCurrentBusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_fcfs_LeaseLiabilityNonCurrentBusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseLiabilityNoncurrent_019c2a00-0121-7ac4-a6f9-28e575d8fd64" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019c2a00-0121-708b-b2fe-0806a2c54291" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019c2a00-0121-708b-b2fe-0806a2c54291" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019c2a22-414d-76ad-aa62-b619416161ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_d0a28a99-ff07-4e91-82b0-e5ae873537de" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019c2a22-414d-76ad-aa62-b619416161ff" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#OperatingLeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_c0bf8f78-d60f-46d2-999d-fc0d42449313" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_c0bf8f78-d60f-46d2-999d-fc0d42449313" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_cedba217-4904-43c5-bc19-51394474361f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_c0bf8f78-d60f-46d2-999d-fc0d42449313" xlink:to="loc_srt_RangeAxis_cedba217-4904-43c5-bc19-51394474361f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_cedba217-4904-43c5-bc19-51394474361f_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_cedba217-4904-43c5-bc19-51394474361f" xlink:to="loc_srt_RangeMember_cedba217-4904-43c5-bc19-51394474361f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c9d2845f-1479-4edc-b184-2bf0286b403c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_cedba217-4904-43c5-bc19-51394474361f" xlink:to="loc_srt_RangeMember_c9d2845f-1479-4edc-b184-2bf0286b403c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_779e487a-72b8-4ea7-ba91-39197d48f114" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c9d2845f-1479-4edc-b184-2bf0286b403c" xlink:to="loc_srt_MinimumMember_779e487a-72b8-4ea7-ba91-39197d48f114" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_40adec46-225f-426a-a705-f98042f878b1" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c9d2845f-1479-4edc-b184-2bf0286b403c" xlink:to="loc_srt_MaximumMember_40adec46-225f-426a-a705-f98042f878b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PercentageOfStoreLocationsLeased_4dd9a6a9-a67e-4246-9619-d635e936c8cd" xlink:href="fcfs-20251231.xsd#fcfs_PercentageOfStoreLocationsLeased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_fcfs_PercentageOfStoreLocationsLeased_4dd9a6a9-a67e-4246-9619-d635e936c8cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_732b2e41-e3b6-4554-978f-2d4d3f9d831a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_732b2e41-e3b6-4554-978f-2d4d3f9d831a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_a9920152-1f86-4301-ba7c-959d58148944" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_a9920152-1f86-4301-ba7c-959d58148944" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_ef87cd29-8ee5-49cb-9f89-2a1ad77a9e09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_ef87cd29-8ee5-49cb-9f89-2a1ad77a9e09" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainBeforeTax_9c7f2c37-8dc3-4e0b-885e-b76428d8eceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainBeforeTax_9c7f2c37-8dc3-4e0b-885e-b76428d8eceb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionLossBeforeTax_de490b31-369d-4974-a67d-2a07f0be7dde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_3231396c-5c94-4528-b6bb-a2b35f30daa8" xlink:to="loc_us-gaap_ForeignCurrencyTransactionLossBeforeTax_de490b31-369d-4974-a67d-2a07f0be7dde" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FairValueofFinancialInstrumentsFairValuebyBalanceSheetGroupingDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#FairValueofFinancialInstrumentsFairValuebyBalanceSheetGroupingDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FairValueofFinancialInstrumentsFairValuebyBalanceSheetGroupingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_c98330a7-cce7-45af-8311-f301387116a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_c98330a7-cce7-45af-8311-f301387116a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c98330a7-cce7-45af-8311-f301387116a4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c98330a7-cce7-45af-8311-f301387116a4" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c98330a7-cce7-45af-8311-f301387116a4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_2a8e0148-bb9a-4076-8cd9-6834c1229c99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c98330a7-cce7-45af-8311-f301387116a4" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_2a8e0148-bb9a-4076-8cd9-6834c1229c99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_4a54880b-2799-4c91-a830-4569aaa03069" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_2a8e0148-bb9a-4076-8cd9-6834c1229c99" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_4a54880b-2799-4c91-a830-4569aaa03069" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_ae4a0f9c-c057-49e2-84e4-dd1d04beb7cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_4a54880b-2799-4c91-a830-4569aaa03069" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_ae4a0f9c-c057-49e2-84e4-dd1d04beb7cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_8c8ac70c-f7c3-40e0-9984-7c5919d67516" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_4a54880b-2799-4c91-a830-4569aaa03069" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_8c8ac70c-f7c3-40e0-9984-7c5919d67516" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_741a1795-46e2-4f22-965e-9ef9e1af070a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_741a1795-46e2-4f22-965e-9ef9e1af070a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_741a1795-46e2-4f22-965e-9ef9e1af070a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_741a1795-46e2-4f22-965e-9ef9e1af070a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_741a1795-46e2-4f22-965e-9ef9e1af070a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8ee7918f-3aad-4f5d-9df0-739f601a367a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_741a1795-46e2-4f22-965e-9ef9e1af070a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8ee7918f-3aad-4f5d-9df0-739f601a367a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_74a3005c-2a8b-41bf-bdd2-ad5cf78d0e01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8ee7918f-3aad-4f5d-9df0-739f601a367a" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_74a3005c-2a8b-41bf-bdd2-ad5cf78d0e01" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_12434d71-303e-4a71-a5cd-bf5749fb933c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8ee7918f-3aad-4f5d-9df0-739f601a367a" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_12434d71-303e-4a71-a5cd-bf5749fb933c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_f2afe792-32ca-4abf-92ac-ea2394f87a70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8ee7918f-3aad-4f5d-9df0-739f601a367a" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_f2afe792-32ca-4abf-92ac-ea2394f87a70" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_aff43812-afe9-4c80-8c43-d072086ccb06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_aff43812-afe9-4c80-8c43-d072086ccb06" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_aff43812-afe9-4c80-8c43-d072086ccb06_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_aff43812-afe9-4c80-8c43-d072086ccb06" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_aff43812-afe9-4c80-8c43-d072086ccb06_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_7da46364-c02b-418a-aa84-6ea6ffb9606f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_aff43812-afe9-4c80-8c43-d072086ccb06" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_7da46364-c02b-418a-aa84-6ea6ffb9606f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnLoansMember_2ee17a52-ec3b-4a01-bdbe-ee1f0fe31d55" xlink:href="fcfs-20251231.xsd#fcfs_PawnLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_7da46364-c02b-418a-aa84-6ea6ffb9606f" xlink:to="loc_fcfs_PawnLoansMember_2ee17a52-ec3b-4a01-bdbe-ee1f0fe31d55" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_ff9d336c-daac-4a9f-a541-22828740e44d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_7da46364-c02b-418a-aa84-6ea6ffb9606f" xlink:to="loc_us-gaap_FinanceReceivablesMember_ff9d336c-daac-4a9f-a541-22828740e44d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9efda356-048f-4e4f-a040-e46c3d3db155" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9efda356-048f-4e4f-a040-e46c3d3db155" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9efda356-048f-4e4f-a040-e46c3d3db155_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9efda356-048f-4e4f-a040-e46c3d3db155" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9efda356-048f-4e4f-a040-e46c3d3db155_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_8a66e26f-a6df-4cb4-8f8b-e40bb1b4975b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9efda356-048f-4e4f-a040-e46c3d3db155" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_8a66e26f-a6df-4cb4-8f8b-e40bb1b4975b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OffBalanceSheetCreditExposureMember_019c3398-41ff-7c40-a372-d49c8dc24d87" xlink:href="fcfs-20251231.xsd#fcfs_OffBalanceSheetCreditExposureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_8a66e26f-a6df-4cb4-8f8b-e40bb1b4975b" xlink:to="loc_fcfs_OffBalanceSheetCreditExposureMember_019c3398-41ff-7c40-a372-d49c8dc24d87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_f2130218-3b5e-4f35-962c-243c803f69c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_8a66e26f-a6df-4cb4-8f8b-e40bb1b4975b" xlink:to="loc_us-gaap_LineOfCreditMember_f2130218-3b5e-4f35-962c-243c803f69c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_c8d8c290-b670-4d93-b428-af7f85ef9249" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_8a66e26f-a6df-4cb4-8f8b-e40bb1b4975b" xlink:to="loc_us-gaap_SeniorNotesMember_c8d8c290-b670-4d93-b428-af7f85ef9249" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_0d953dfd-5774-4793-a1e9-6013a3a24974" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2069c619-dc3f-4407-a239-08719149f568" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_a0c85326-ef0e-4a34-aa6e-f52d8bf52b06" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2069c619-dc3f-4407-a239-08719149f568" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_0fe04c64-deeb-49bf-897a-1106b025783b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_0fe04c64-deeb-49bf-897a-1106b025783b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableFairValueDisclosure_05a359f6-58c2-4504-b63b-c6cf1de60951" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_AccountsReceivableFairValueDisclosure_05a359f6-58c2-4504-b63b-c6cf1de60951" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_7a04bcb0-4321-424a-96fc-4c7ca32b2846" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_7a04bcb0-4321-424a-96fc-4c7ca32b2846" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_04744e0f-4dc9-4f03-85ac-4bc18dfa889e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_04744e0f-4dc9-4f03-85ac-4bc18dfa889e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_c7d0be4e-8be7-4967-849e-17804c36eb31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_LongTermDebtFairValue_c7d0be4e-8be7-4967-849e-17804c36eb31" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_d990cb76-451e-46f2-a98e-a63d688e5449" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_d990cb76-451e-46f2-a98e-a63d688e5449" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount_c3df7f44-cbde-47be-bd08-74308f90b8c8" xlink:href="fcfs-20251231.xsd#fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_ae4289b6-106f-4aaa-939b-b9fd064c45e7" xlink:to="loc_fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount_c3df7f44-cbde-47be-bd08-74308f90b8c8" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FinanceReceivablesNetRollforwardDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#FinanceReceivablesNetRollforwardDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FinanceReceivablesNetRollforwardDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_bb52de66-d552-496a-b767-1b7cef0f6388" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_f7ceef4e-c5d0-44fd-8747-2ad529d6aaa1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_bb52de66-d552-496a-b767-1b7cef0f6388" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_f7ceef4e-c5d0-44fd-8747-2ad529d6aaa1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_6b370d30-1f22-4d40-a81b-00d365710358" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_f7ceef4e-c5d0-44fd-8747-2ad529d6aaa1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_6b370d30-1f22-4d40-a81b-00d365710358" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6b370d30-1f22-4d40-a81b-00d365710358_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6b370d30-1f22-4d40-a81b-00d365710358" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6b370d30-1f22-4d40-a81b-00d365710358_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9ae40bfd-9dbe-4b0f-92fa-f49077534bf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6b370d30-1f22-4d40-a81b-00d365710358" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9ae40bfd-9dbe-4b0f-92fa-f49077534bf6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_bb52de66-d552-496a-b767-1b7cef0f6388" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_d19efce2-33e7-4953-95c9-810dbf666878" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_d19efce2-33e7-4953-95c9-810dbf666878" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019c2a24-4f63-7565-9eca-3b57e4033007" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:to="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019c2a24-4f63-7565-9eca-3b57e4033007" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_bed7cfe0-063d-455d-a3b2-07007ef508f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_bed7cfe0-063d-455d-a3b2-07007ef508f5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_0d39b8e0-14c7-4f24-a1d1-01c037fd3783" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_2529f336-1433-4c72-a035-c5d46854d4d9" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_0d39b8e0-14c7-4f24-a1d1-01c037fd3783" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_5c2b24fc-935e-415d-9744-f93118ec780e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FinanceReceivablesNetCreditQualityIndicatorDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#FinanceReceivablesNetCreditQualityIndicatorDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FinanceReceivablesNetCreditQualityIndicatorDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_3e625651-c3e6-406c-89d7-a0bb4a0a7a11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_7658634a-4502-4c26-bc62-5fb86e7c46d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_3e625651-c3e6-406c-89d7-a0bb4a0a7a11" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_7658634a-4502-4c26-bc62-5fb86e7c46d4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditScoreFicoAxis_6ebb0482-00f5-4ef2-9278-651184c9f25c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditScoreFicoAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_7658634a-4502-4c26-bc62-5fb86e7c46d4" xlink:to="loc_us-gaap_CreditScoreFicoAxis_6ebb0482-00f5-4ef2-9278-651184c9f25c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditScoreFicoDomain_6ebb0482-00f5-4ef2-9278-651184c9f25c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditScoreFicoDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditScoreFicoAxis_6ebb0482-00f5-4ef2-9278-651184c9f25c" xlink:to="loc_us-gaap_CreditScoreFicoDomain_6ebb0482-00f5-4ef2-9278-651184c9f25c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditScoreFicoDomain_2fceb0c4-c088-45f4-bc86-a6f1ade3c597" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditScoreFicoDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditScoreFicoAxis_6ebb0482-00f5-4ef2-9278-651184c9f25c" xlink:to="loc_us-gaap_CreditScoreFicoDomain_2fceb0c4-c088-45f4-bc86-a6f1ade3c597" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_4224bae2-4be6-4ea7-9f41-62db41011f54" xlink:href="fcfs-20251231.xsd#fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_3e625651-c3e6-406c-89d7-a0bb4a0a7a11" xlink:to="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_4224bae2-4be6-4ea7-9f41-62db41011f54" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_1bf1dbf2-9eee-441d-aa8d-607792142f4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesReceivableGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_3e625651-c3e6-406c-89d7-a0bb4a0a7a11" xlink:to="loc_us-gaap_NotesReceivableGross_1bf1dbf2-9eee-441d-aa8d-607792142f4c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FinanceReceivablesNetAgingofFinanceReceivableDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#FinanceReceivablesNetAgingofFinanceReceivableDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FinanceReceivablesNetAgingofFinanceReceivableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_0804f74d-b6e2-4a0b-9635-e5c021f53eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7b3f547b-8012-4858-8ccd-6509bf02cf1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_0804f74d-b6e2-4a0b-9635-e5c021f53eb0" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7b3f547b-8012-4858-8ccd-6509bf02cf1c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7b3f547b-8012-4858-8ccd-6509bf02cf1c" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_1efaaab1-dd2b-4ff5-88e4-d687b94f73c9" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_b6b7bde6-c4d4-4a20-9465-f96df5a36b9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivables1To29DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:to="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_b6b7bde6-c4d4-4a20-9465-f96df5a36b9e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_536fb40d-73dd-4fa6-82ee-4d134b4cc7fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:to="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_536fb40d-73dd-4fa6-82ee-4d134b4cc7fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_a9e9d672-55d1-4f2f-9ff2-ac11e4e2564e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:to="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_a9e9d672-55d1-4f2f-9ff2-ac11e4e2564e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetPastDueMember_dc6e7807-1581-40db-9898-ff37f410c44f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialAssetPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:to="loc_us-gaap_FinancialAssetPastDueMember_dc6e7807-1581-40db-9898-ff37f410c44f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetNotPastDueMember_d8862c87-d480-48e5-9d77-c5d36fa7e72c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialAssetNotPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_55db9f50-9f9e-47aa-9252-1644ec15da16" xlink:to="loc_us-gaap_FinancialAssetNotPastDueMember_d8862c87-d480-48e5-9d77-c5d36fa7e72c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearAxis_9d85c7f6-79f0-430a-9083-4584d5621096" xlink:href="fcfs-20251231.xsd#fcfs_OriginationYearAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7b3f547b-8012-4858-8ccd-6509bf02cf1c" xlink:to="loc_fcfs_OriginationYearAxis_9d85c7f6-79f0-430a-9083-4584d5621096" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_9d85c7f6-79f0-430a-9083-4584d5621096_default" xlink:href="fcfs-20251231.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_fcfs_OriginationYearAxis_9d85c7f6-79f0-430a-9083-4584d5621096" xlink:to="loc_fcfs_OriginationYearDomain_9d85c7f6-79f0-430a-9083-4584d5621096_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:href="fcfs-20251231.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_fcfs_OriginationYearAxis_9d85c7f6-79f0-430a-9083-4584d5621096" xlink:to="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Year2025Member_019c2a26-7d81-78e4-9072-0e438463ba76" xlink:href="fcfs-20251231.xsd#fcfs_Year2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:to="loc_fcfs_Year2025Member_019c2a26-7d81-78e4-9072-0e438463ba76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Year2024Member_22602e30-022e-4da9-9365-030f76ec0661" xlink:href="fcfs-20251231.xsd#fcfs_Year2024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:to="loc_fcfs_Year2024Member_22602e30-022e-4da9-9365-030f76ec0661" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Year2023Member_c5e59fce-0c8b-429c-8734-09b1b4c97e98" xlink:href="fcfs-20251231.xsd#fcfs_Year2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:to="loc_fcfs_Year2023Member_c5e59fce-0c8b-429c-8734-09b1b4c97e98" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Year2022Member_62bc79e1-5104-48fe-8e13-c524cc005f83" xlink:href="fcfs-20251231.xsd#fcfs_Year2022Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:to="loc_fcfs_Year2022Member_62bc79e1-5104-48fe-8e13-c524cc005f83" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Year2021Member_3a086bc9-6354-4c8f-97ad-437a2f5a039b" xlink:href="fcfs-20251231.xsd#fcfs_Year2021Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_ba90080b-eda5-477a-9a4b-85844b6709c7" xlink:to="loc_fcfs_Year2021Member_3a086bc9-6354-4c8f-97ad-437a2f5a039b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_04b32504-b0c3-4afe-beb8-649f2bd5e041" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesReceivableGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_0804f74d-b6e2-4a0b-9635-e5c021f53eb0" xlink:to="loc_us-gaap_NotesReceivableGross_04b32504-b0c3-4afe-beb8-649f2bd5e041" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_766672e9-78e8-49a8-a32c-5f44ae0b8a9a" xlink:href="fcfs-20251231.xsd#fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_0804f74d-b6e2-4a0b-9635-e5c021f53eb0" xlink:to="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_766672e9-78e8-49a8-a32c-5f44ae0b8a9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_7313ab8c-1707-4cea-a902-b5bb7c47253f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_0804f74d-b6e2-4a0b-9635-e5c021f53eb0" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_7313ab8c-1707-4cea-a902-b5bb7c47253f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/PropertyandEquipmentDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#PropertyandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/PropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_1827d1ae-6730-4447-9795-9514a11c370d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_1827d1ae-6730-4447-9795-9514a11c370d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_1827d1ae-6730-4447-9795-9514a11c370d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_55839858-4c9e-46d5-9848-538638e8b228" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0c7e1bb6-de6e-4a89-bef1-c1277d6bab22" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_55839858-4c9e-46d5-9848-538638e8b228" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_53b38084-5450-496a-bf58-e911a87063ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_55839858-4c9e-46d5-9848-538638e8b228" xlink:to="loc_us-gaap_LandMember_53b38084-5450-496a-bf58-e911a87063ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_624eb27f-c0d7-4c16-a7d5-9efb9b0860ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_55839858-4c9e-46d5-9848-538638e8b228" xlink:to="loc_us-gaap_BuildingMember_624eb27f-c0d7-4c16-a7d5-9efb9b0860ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FurnitureFixturesEquipmentAndLeaseholdMember_4602c7fe-d71a-4f47-bf5a-75aeaf276396" xlink:href="fcfs-20251231.xsd#fcfs_FurnitureFixturesEquipmentAndLeaseholdMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_55839858-4c9e-46d5-9848-538638e8b228" xlink:to="loc_fcfs_FurnitureFixturesEquipmentAndLeaseholdMember_4602c7fe-d71a-4f47-bf5a-75aeaf276396" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_a5244a3c-9b8e-4a78-acc7-e7b718968263" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_a5244a3c-9b8e-4a78-acc7-e7b718968263" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_36404bf3-509d-4a13-8b22-51ac25c1b06f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_36404bf3-509d-4a13-8b22-51ac25c1b06f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_dadfd9a7-0bbc-4c5a-b31b-bf099333b8d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_dadfd9a7-0bbc-4c5a-b31b-bf099333b8d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationNonproduction_1faa223c-dfaa-42a0-a5dc-54e35b98b3c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationNonproduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f6de2216-28c9-4d8c-8107-331d6d0fa276" xlink:to="loc_us-gaap_DepreciationNonproduction_1faa223c-dfaa-42a0-a5dc-54e35b98b3c8" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/AccountsPayableandAccruedLiabilitiesDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#AccountsPayableandAccruedLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/AccountsPayableandAccruedLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_86cb39a6-0b7f-4597-8550-87087f29df8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_86cb39a6-0b7f-4597-8550-87087f29df8e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_e9e6f6b7-17ab-419c-9948-dec0242578cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_86cb39a6-0b7f-4597-8550-87087f29df8e" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_e9e6f6b7-17ab-419c-9948-dec0242578cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e9e6f6b7-17ab-419c-9948-dec0242578cd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_e9e6f6b7-17ab-419c-9948-dec0242578cd" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e9e6f6b7-17ab-419c-9948-dec0242578cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_44510a35-c3b7-4421-9089-a8e4d4d58c1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_e9e6f6b7-17ab-419c-9948-dec0242578cd" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_44510a35-c3b7-4421-9089-a8e4d4d58c1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessAcquisitionAccountsPayableToSellers_ab044879-a765-4c6b-99d3-09671f7f8c05" xlink:href="fcfs-20251231.xsd#fcfs_BusinessAcquisitionAccountsPayableToSellers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_fcfs_BusinessAcquisitionAccountsPayableToSellers_ab044879-a765-4c6b-99d3-09671f7f8c05" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalariesCurrent_8dd6b928-6769-40b1-a5b4-5b61ef168a00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedSalariesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_AccruedSalariesCurrent_8dd6b928-6769-40b1-a5b4-5b61ef168a00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_b9480354-267e-415e-b254-be566ce09059" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_TaxesPayableCurrent_b9480354-267e-415e-b254-be566ce09059" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_7a62006b-481a-4b84-9f60-af9ffe559d6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_AccountsPayableCurrent_7a62006b-481a-4b84-9f60-af9ffe559d6e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_4d0a210f-d094-4cc1-80dd-1fb4dc43475a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_InterestPayableCurrent_4d0a210f-d094-4cc1-80dd-1fb4dc43475a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_71f3914c-485f-4d38-9cbf-3d251cd8dd91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrentAndNoncurrent_71f3914c-485f-4d38-9cbf-3d251cd8dd91" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_AccruedEmployeeBenefitsAndPayrollTaxesCurrent_5d69d80a-85c2-4c0e-9727-e3ea0da74fee" xlink:href="fcfs-20251231.xsd#fcfs_AccruedEmployeeBenefitsAndPayrollTaxesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_fcfs_AccruedEmployeeBenefitsAndPayrollTaxesCurrent_5d69d80a-85c2-4c0e-9727-e3ea0da74fee" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_acaacc78-3373-4a41-a950-01f368a20d70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_acaacc78-3373-4a41-a950-01f368a20d70" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffBalanceSheetCreditLossLiability_019c2a29-1a72-7394-b8b3-c57e70402fb7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OffBalanceSheetCreditLossLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_OffBalanceSheetCreditLossLiability_019c2a29-1a72-7394-b8b3-c57e70402fb7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_42ac8ab3-860f-4bd0-af37-dfc3b192fcaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_42ac8ab3-860f-4bd0-af37-dfc3b192fcaa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_76ca5ac2-f261-4ac2-87be-517c0b17e275" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_69651bf0-6992-4a37-9e57-ee14f7b04f67" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_76ca5ac2-f261-4ac2-87be-517c0b17e275" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/LongTermDebtScheduleofDebtDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#LongTermDebtScheduleofDebtDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/LongTermDebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_e3a66014-0d90-41c0-beb1-00753238b22d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:to="loc_us-gaap_DebtInstrumentTable_e3a66014-0d90-41c0-beb1-00753238b22d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_e3a66014-0d90-41c0-beb1-00753238b22d" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3c098f92-ef9a-4f4d-ae98-1f3ab00c48cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_d38ca62f-2ab0-40a2-8eba-f0cfbcc59633" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3c098f92-ef9a-4f4d-ae98-1f3ab00c48cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_f7118545-e3ea-4c83-a98a-ec0c41df0d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3c098f92-ef9a-4f4d-ae98-1f3ab00c48cf" xlink:to="loc_us-gaap_LineOfCreditMember_f7118545-e3ea-4c83-a98a-ec0c41df0d0d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_77e20b3c-9af5-4cc1-9de3-8ff05a490d74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3c098f92-ef9a-4f4d-ae98-1f3ab00c48cf" xlink:to="loc_us-gaap_SeniorNotesMember_77e20b3c-9af5-4cc1-9de3-8ff05a490d74" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c2a14-99f7-7b05-ae89-3d0a44695e75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3c098f92-ef9a-4f4d-ae98-1f3ab00c48cf" xlink:to="loc_us-gaap_SecuredDebtMember_019c2a14-99f7-7b05-ae89-3d0a44695e75" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_6499b25b-2cdf-443d-9501-ae5153efba04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_e3a66014-0d90-41c0-beb1-00753238b22d" xlink:to="loc_us-gaap_DebtInstrumentAxis_6499b25b-2cdf-443d-9501-ae5153efba04" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_6499b25b-2cdf-443d-9501-ae5153efba04_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_6499b25b-2cdf-443d-9501-ae5153efba04" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_6499b25b-2cdf-443d-9501-ae5153efba04_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_6499b25b-2cdf-443d-9501-ae5153efba04" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_36d628f2-16e6-4771-b783-f67bde43d99d" xlink:href="fcfs-20251231.xsd#fcfs_A4625SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_36d628f2-16e6-4771-b783-f67bde43d99d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_4cd86a6a-d3e0-4cbc-b2e4-81b2f5a32225" xlink:href="fcfs-20251231.xsd#fcfs_A5625SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_4cd86a6a-d3e0-4cbc-b2e4-81b2f5a32225" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2027Member_d03519a7-6cb8-4c37-90c8-1f657b2ed956" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingUnsecuredCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2027Member_d03519a7-6cb8-4c37-90c8-1f657b2ed956" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_84bfcfc2-ad88-4532-aa6c-aa81864a0b92" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_84bfcfc2-ad88-4532-aa6c-aa81864a0b92" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_371a95fc-c488-479f-8c13-49ba2d75e757" xlink:href="fcfs-20251231.xsd#fcfs_A6.875SeniorUnsecuredNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_371a95fc-c488-479f-8c13-49ba2d75e757" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingSecuredCreditFacilityDue2027Member_019c2a14-4b3f-73b3-80fa-7719efb2796d" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingSecuredCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_RevolvingSecuredCreditFacilityDue2027Member_019c2a14-4b3f-73b3-80fa-7719efb2796d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2027Member_019c2a14-99f7-7e0d-984f-dfd5b83cd6e1" xlink:href="fcfs-20251231.xsd#fcfs_SecuredTermLoanDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_SecuredTermLoanDue2027Member_019c2a14-99f7-7e0d-984f-dfd5b83cd6e1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2029Member_019c2a14-99f7-7ef3-9e2f-09fb0550bb01" xlink:href="fcfs-20251231.xsd#fcfs_SecuredTermLoanDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_SecuredTermLoanDue2029Member_019c2a14-99f7-7ef3-9e2f-09fb0550bb01" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2031Member_019c2a14-99f7-789a-bfc6-65b5b55e6694" xlink:href="fcfs-20251231.xsd#fcfs_SecuredTermLoanDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fca1de6c-3931-41b6-b9d9-7388f2f1e02c" xlink:to="loc_fcfs_SecuredTermLoanDue2031Member_019c2a14-99f7-789a-bfc6-65b5b55e6694" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_d233f919-064c-4b35-8b67-c4739d15de82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:to="loc_us-gaap_LongTermDebt_d233f919-064c-4b35-8b67-c4739d15de82" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_c660ffbf-01e1-4f9e-8410-349ba2cbfde8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_c660ffbf-01e1-4f9e-8410-349ba2cbfde8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_18d0cd01-1ffa-4449-8315-eb372dc9aa22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_18d0cd01-1ffa-4449-8315-eb372dc9aa22" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_654cde1d-980f-43de-a4e1-311c557be662" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_64001795-4c7d-46ee-9fdb-db8339cf4954" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_654cde1d-980f-43de-a4e1-311c557be662" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/LongTermDebtNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#LongTermDebtNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/LongTermDebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_8400ab8c-c294-432a-b6f4-ef79ea64c307" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_srt_RangeAxis_8400ab8c-c294-432a-b6f4-ef79ea64c307" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8400ab8c-c294-432a-b6f4-ef79ea64c307_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_8400ab8c-c294-432a-b6f4-ef79ea64c307" xlink:to="loc_srt_RangeMember_8400ab8c-c294-432a-b6f4-ef79ea64c307_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a20b2c91-b5a2-41bb-999c-c0f1c480a5ae" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_8400ab8c-c294-432a-b6f4-ef79ea64c307" xlink:to="loc_srt_RangeMember_a20b2c91-b5a2-41bb-999c-c0f1c480a5ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_f5d2035c-f446-407d-a9c5-4d4874ef2c5d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_a20b2c91-b5a2-41bb-999c-c0f1c480a5ae" xlink:to="loc_srt_MinimumMember_f5d2035c-f446-407d-a9c5-4d4874ef2c5d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019c2a18-807a-7999-b0de-47196a419267" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_a20b2c91-b5a2-41bb-999c-c0f1c480a5ae" xlink:to="loc_srt_MaximumMember_019c2a18-807a-7999-b0de-47196a419267" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9eb2f9c4-bce3-40ed-82ab-05a310a3b32c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5.375SeniorUnsecuredNotesdue2024Member_b8eed7da-6ba2-4ada-95aa-73f69ea911ed" xlink:href="fcfs-20251231.xsd#fcfs_A5.375SeniorUnsecuredNotesdue2024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:to="loc_fcfs_A5.375SeniorUnsecuredNotesdue2024Member_b8eed7da-6ba2-4ada-95aa-73f69ea911ed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_990acc3d-bcb3-4474-8ac3-e6071ba64a70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:to="loc_us-gaap_LineOfCreditMember_990acc3d-bcb3-4474-8ac3-e6071ba64a70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_29dbc374-3227-4c3d-88de-160287a19738" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:to="loc_us-gaap_SeniorNotesMember_29dbc374-3227-4c3d-88de-160287a19738" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c2a19-5612-77c8-8df1-e17c0a3850d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1ed576dc-63fd-46e7-8ae9-7ede4f2e5c58" xlink:to="loc_us-gaap_SecuredDebtMember_019c2a19-5612-77c8-8df1-e17c0a3850d4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_2ca89af5-71f2-4744-af17-8d70ec894a76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_us-gaap_VariableRateAxis_2ca89af5-71f2-4744-af17-8d70ec894a76" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_2ca89af5-71f2-4744-af17-8d70ec894a76_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_2ca89af5-71f2-4744-af17-8d70ec894a76" xlink:to="loc_us-gaap_VariableRateDomain_2ca89af5-71f2-4744-af17-8d70ec894a76_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_566d590d-eb1d-4be7-8708-066c880fe3b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_2ca89af5-71f2-4744-af17-8d70ec894a76" xlink:to="loc_us-gaap_VariableRateDomain_566d590d-eb1d-4be7-8708-066c880fe3b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrimeRateMember_fdee33ee-84ce-4dd9-94a0-3034001628b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrimeRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_566d590d-eb1d-4be7-8708-066c880fe3b3" xlink:to="loc_us-gaap_PrimeRateMember_fdee33ee-84ce-4dd9-94a0-3034001628b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember_3d88442f-60f7-409f-9338-162b5dae0e21" xlink:href="fcfs-20251231.xsd#fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_566d590d-eb1d-4be7-8708-066c880fe3b3" xlink:to="loc_fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember_3d88442f-60f7-409f-9338-162b5dae0e21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_672966d5-fa4a-4f2d-9308-7b807ea9220f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_566d590d-eb1d-4be7-8708-066c880fe3b3" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_672966d5-fa4a-4f2d-9308-7b807ea9220f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_8bb785c2-a038-4dff-874e-b351b3d6af3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_us-gaap_DebtInstrumentAxis_8bb785c2-a038-4dff-874e-b351b3d6af3f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_8bb785c2-a038-4dff-874e-b351b3d6af3f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_8bb785c2-a038-4dff-874e-b351b3d6af3f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_8bb785c2-a038-4dff-874e-b351b3d6af3f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_8bb785c2-a038-4dff-874e-b351b3d6af3f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_ee56b6ea-444f-4191-8223-3cbc074ba23e" xlink:href="fcfs-20251231.xsd#fcfs_A4625SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_ee56b6ea-444f-4191-8223-3cbc074ba23e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5.375SeniorUnsecuredNotesdue2024Member_5264fdeb-a0ad-4114-8fb0-68cb690e5195" xlink:href="fcfs-20251231.xsd#fcfs_A5.375SeniorUnsecuredNotesdue2024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_A5.375SeniorUnsecuredNotesdue2024Member_5264fdeb-a0ad-4114-8fb0-68cb690e5195" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_b6553557-9498-4100-be8c-f9ada33f7b63" xlink:href="fcfs-20251231.xsd#fcfs_A5625SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_b6553557-9498-4100-be8c-f9ada33f7b63" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2027Member_9487f10b-99a3-40dd-ac84-0f687cc770d9" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingUnsecuredCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2027Member_9487f10b-99a3-40dd-ac84-0f687cc770d9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_5a8dbc8c-cb45-400e-a4bc-be7192d72914" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingUnsecuredCreditFacilityDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_5a8dbc8c-cb45-400e-a4bc-be7192d72914" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_2bfdc395-09fa-4795-ba3b-7b438e7c7080" xlink:href="fcfs-20251231.xsd#fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_2bfdc395-09fa-4795-ba3b-7b438e7c7080" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_5e119f15-ff1d-4acc-a449-c9a86ba8a649" xlink:href="fcfs-20251231.xsd#fcfs_A6.875SeniorUnsecuredNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_5e119f15-ff1d-4acc-a449-c9a86ba8a649" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.CreditFacilityMember_019c2a18-807a-71d2-a730-290a2304f5a7" xlink:href="fcfs-20251231.xsd#fcfs_U.K.CreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_U.K.CreditFacilityMember_019c2a18-807a-71d2-a730-290a2304f5a7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoansMember_019c2a19-5612-7510-b4a6-8cccfccebf4b" xlink:href="fcfs-20251231.xsd#fcfs_U.K.TermLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_U.K.TermLoansMember_019c2a19-5612-7510-b4a6-8cccfccebf4b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember_019c2a19-5612-7b60-a3c9-f814ca8fe1e4" xlink:href="fcfs-20251231.xsd#fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember_019c2a19-5612-7b60-a3c9-f814ca8fe1e4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember_019c2a19-5612-759a-b6a2-6479a001712e" xlink:href="fcfs-20251231.xsd#fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember_019c2a19-5612-759a-b6a2-6479a001712e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember_019c2a19-5612-7e07-b939-975c0b58ef6d" xlink:href="fcfs-20251231.xsd#fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_6fc35886-868a-4cc4-a6ae-02781b1fb3b1" xlink:to="loc_fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember_019c2a19-5612-7e07-b939-975c0b58ef6d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019c2a15-f3a7-7708-ab81-f86e50a70a97" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_srt_StatementScenarioAxis_019c2a15-f3a7-7708-ab81-f86e50a70a97" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019c2a15-f3a7-7708-ab81-f86e50a70a97_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019c2a15-f3a7-7708-ab81-f86e50a70a97" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019c2a15-f3a7-7708-ab81-f86e50a70a97_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019c2a15-f3a7-7bc8-a206-bb0d290967b8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019c2a15-f3a7-7708-ab81-f86e50a70a97" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019c2a15-f3a7-7bc8-a206-bb0d290967b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_019c2a15-f3a7-71fb-afb3-2c5ec0468d14" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019c2a15-f3a7-7bc8-a206-bb0d290967b8" xlink:to="loc_srt_ScenarioForecastMember_019c2a15-f3a7-71fb-afb3-2c5ec0468d14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019c2a18-807a-7458-b59b-9e332d751a91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_07fa28b4-f803-4f33-acef-989130ada720" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019c2a18-807a-7458-b59b-9e332d751a91" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c2a18-807a-7458-b59b-9e332d751a91_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019c2a18-807a-7458-b59b-9e332d751a91" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c2a18-807a-7458-b59b-9e332d751a91_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c2a18-807a-7163-8852-31ecd060cf6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019c2a18-807a-7458-b59b-9e332d751a91" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c2a18-807a-7163-8852-31ecd060cf6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_HTAcquisitionMember_019c2a18-807a-7439-97c1-3b995b1ed843" xlink:href="fcfs-20251231.xsd#fcfs_HTAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c2a18-807a-7163-8852-31ecd060cf6a" xlink:to="loc_fcfs_HTAcquisitionMember_019c2a18-807a-7439-97c1-3b995b1ed843" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_48549ba2-c9bd-4793-8c5b-406d5bea2792" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_48549ba2-c9bd-4793-8c5b-406d5bea2792" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_c4685ddc-d3eb-4284-b73f-55420655a3ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCredit_c4685ddc-d3eb-4284-b73f-55420655a3ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_ee0b4b30-e7e9-462d-85da-1bb89b08f0f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_ee0b4b30-e7e9-462d-85da-1bb89b08f0f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_413030a9-7faf-4435-bb90-a56c42e491f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_413030a9-7faf-4435-bb90-a56c42e491f8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_6863a0a8-886a-47ba-abe4-8a3857201a26" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_6863a0a8-886a-47ba-abe4-8a3857201a26" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_77978c1d-306a-4c4b-9ead-1f6717fc8d30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_77978c1d-306a-4c4b-9ead-1f6717fc8d30" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_df2393d9-8adb-4aec-8de4-b7cebfe78ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_df2393d9-8adb-4aec-8de4-b7cebfe78ed0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_55b26040-fbfc-410a-8a44-3f8ea126c6db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_55b26040-fbfc-410a-8a44-3f8ea126c6db" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_fb1d1eb4-a60c-481e-a562-3f2a9fd3af58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_fb1d1eb4-a60c-481e-a562-3f2a9fd3af58" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_b102d45f-be63-4166-8147-5f408cf00135" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_b102d45f-be63-4166-8147-5f408cf00135" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DebtCovenantTotalDebtRatioThreshold_6296eb4b-3a03-4aaa-bd7a-10739928eac7" xlink:href="fcfs-20251231.xsd#fcfs_DebtCovenantTotalDebtRatioThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_DebtCovenantTotalDebtRatioThreshold_6296eb4b-3a03-4aaa-bd7a-10739928eac7" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_c24f118f-3b37-436f-92d8-51fcdc5a630c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_c24f118f-3b37-436f-92d8-51fcdc5a630c" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DebtInstrumentRedemptionPriceUpToPercentage_df955c44-86ba-4803-a8ea-202fad51242d" xlink:href="fcfs-20251231.xsd#fcfs_DebtInstrumentRedemptionPriceUpToPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_DebtInstrumentRedemptionPriceUpToPercentage_df955c44-86ba-4803-a8ea-202fad51242d" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_427fbced-74d6-4e41-b13b-05ea9848369a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_427fbced-74d6-4e41-b13b-05ea9848369a" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DebtCovenantTotalDebtRatio_61998374-8ff3-45aa-a3cd-b9e43a110280" xlink:href="fcfs-20251231.xsd#fcfs_DebtCovenantTotalDebtRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_DebtCovenantTotalDebtRatio_61998374-8ff3-45aa-a3cd-b9e43a110280" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LineOfCreditFacilityLeverageRatioAdjustedEBITDA_10463754-284a-4b22-871a-5f34ec2c5996" xlink:href="fcfs-20251231.xsd#fcfs_LineOfCreditFacilityLeverageRatioAdjustedEBITDA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_LineOfCreditFacilityLeverageRatioAdjustedEBITDA_10463754-284a-4b22-871a-5f34ec2c5996" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LineOfCreditFacilityNonLoanPartyInvestmentRequirementPercentage_019c2a15-f3a7-7b54-9776-5b45451eeaa7" xlink:href="fcfs-20251231.xsd#fcfs_LineOfCreditFacilityNonLoanPartyInvestmentRequirementPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_LineOfCreditFacilityNonLoanPartyInvestmentRequirementPercentage_019c2a15-f3a7-7b54-9776-5b45451eeaa7" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_019c2a18-807a-7ccb-acc2-3a4e1f412396" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_019c2a18-807a-7ccb-acc2-3a4e1f412396" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding_019c2a18-807a-7955-bef1-aa2dbde3af13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding_019c2a18-807a-7955-bef1-aa2dbde3af13" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed_019c2a19-5612-795e-bec7-e4d1ff173b85" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed_019c2a19-5612-795e-bec7-e4d1ff173b85" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_019c2a19-5612-7561-b22c-07c5782d3350" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_019c2a19-5612-7561-b22c-07c5782d3350" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c2a82-9e6b-704b-9b04-949a00c3dd13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_db1c77fe-02c8-438e-b47a-f23448fd4454" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c2a82-9e6b-704b-9b04-949a00c3dd13" xlink:type="arc" order="21"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#IncomeTaxesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxContingencyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyTable_019c0552-c77e-779e-803a-d75b92978e3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxContingencyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_IncomeTaxContingencyTable_019c0552-c77e-779e-803a-d75b92978e3e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019c0552-c77e-73a6-9e50-18542c4319cf" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_019c0552-c77e-779e-803a-d75b92978e3e" xlink:to="loc_srt_StatementGeographicalAxis_019c0552-c77e-73a6-9e50-18542c4319cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019c0552-c77e-73a6-9e50-18542c4319cf_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019c0552-c77e-73a6-9e50-18542c4319cf" xlink:to="loc_srt_SegmentGeographicalDomain_019c0552-c77e-73a6-9e50-18542c4319cf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019c0552-c77e-73a6-9e50-18542c4319cf" xlink:to="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_019c0552-c77e-7c01-8a43-1663bd08ead7" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:to="loc_country_MX_019c0552-c77e-7c01-8a43-1663bd08ead7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GT_019c0552-c77e-7813-a140-44cd444865c0" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GT"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:to="loc_country_GT_019c0552-c77e-7813-a140-44cd444865c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CO_019c0552-c77e-74c0-aefc-b18afc226bd1" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CO"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:to="loc_country_CO_019c0552-c77e-74c0-aefc-b18afc226bd1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_SV_019c0552-c77e-7c3f-8646-daec8a8f20ef" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_SV"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:to="loc_country_SV_019c0552-c77e-7c3f-8646-daec8a8f20ef" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019c29ce-f76d-7a5b-9043-01d4fe13abd4" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c0552-c77e-7db6-a3af-519fbb1373fd" xlink:to="loc_country_GB_019c29ce-f76d-7a5b-9043-01d4fe13abd4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c0552-c77e-75b3-82e6-48850cf1d0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c0552-c77e-75b3-82e6-48850cf1d0e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Incometaxbenefitpercentoflikelihoodofbeingrealizeduponsettlement_019c0552-c77e-7785-ac25-7aa08a414355" xlink:href="fcfs-20251231.xsd#fcfs_Incometaxbenefitpercentoflikelihoodofbeingrealizeduponsettlement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_fcfs_Incometaxbenefitpercentoflikelihoodofbeingrealizeduponsettlement_019c0552-c77e-7785-ac25-7aa08a414355" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_019c0552-c77e-755a-b405-4ce9abf05fb1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_019c0552-c77e-755a-b405-4ce9abf05fb1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_019c0552-c77e-7e24-be07-683673f6894e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_019c0552-c77e-7e24-be07-683673f6894e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_019c0552-c77e-757e-99be-c05f7306cc7d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_019c0552-c77e-757e-99be-c05f7306cc7d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_019c2a20-ff95-7f44-8b37-8a78accae6dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_019c2a20-ff95-7f44-8b37-8a78accae6dc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignEarningsRepatriated_019c2a20-ff95-7fc6-94ca-297d17e3b6ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignEarningsRepatriated"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_019c0552-c77e-7a9a-b8e0-01c77694048d" xlink:to="loc_us-gaap_ForeignEarningsRepatriated_019c2a20-ff95-7fc6-94ca-297d17e3b6ed" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/IncomeTaxesIncomeTaxReconciliationDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#IncomeTaxesIncomeTaxReconciliationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/IncomeTaxesIncomeTaxReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c29bd-c864-766f-b9bb-3b2b8e4862a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c29bd-c864-7532-926d-9f219f7005bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c29bd-c864-766f-b9bb-3b2b8e4862a1" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c29bd-c864-7532-926d-9f219f7005bc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c29bd-c864-790b-bb40-1929e5ecd2bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c29bd-c864-7532-926d-9f219f7005bc" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c29bd-c864-790b-bb40-1929e5ecd2bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c29bd-c864-790b-bb40-1929e5ecd2bc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c29bd-c864-790b-bb40-1929e5ecd2bc" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c29bd-c864-790b-bb40-1929e5ecd2bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c29bd-c864-7f5e-a06d-7c2d29b8f0ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c29bd-c864-790b-bb40-1929e5ecd2bc" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c29bd-c864-7f5e-a06d-7c2d29b8f0ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019c29be-a0bb-752b-8b4f-e9fc65c447f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c29bd-c864-7f5e-a06d-7c2d29b8f0ed" xlink:to="loc_us-gaap_ForeignCountryMember_019c29be-a0bb-752b-8b4f-e9fc65c447f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c29bd-c864-766f-b9bb-3b2b8e4862a1" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_99acc75a-48ed-4a07-bc0e-79c810f6ce29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_99acc75a-48ed-4a07-bc0e-79c810f6ce29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c29b8-05fd-7f3a-bfb6-f1025a3c5992" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c29b8-05fd-7f3a-bfb6-f1025a3c5992" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract_019c29c0-1a0d-77fa-99b4-269645a884d6" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract_019c29c0-1a0d-77fa-99b4-269645a884d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_019c29b8-05fd-7709-8b21-2ffb5d8e901b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract_019c29c0-1a0d-77fa-99b4-269645a884d6" xlink:to="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_019c29b8-05fd-7709-8b21-2ffb5d8e901b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectofIndefinitelyReinvestingForeignEarnings_019c29b8-05fd-7360-8d67-b27b4ddd204a" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectofIndefinitelyReinvestingForeignEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract_019c29c0-1a0d-77fa-99b4-269645a884d6" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectofIndefinitelyReinvestingForeignEarnings_019c29b8-05fd-7360-8d67-b27b4ddd204a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount_019c29b8-05fd-7d0d-8440-1f6a429b9fa1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsAbstract_019c29c0-1a0d-77fa-99b4-269645a884d6" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount_019c29b8-05fd-7d0d-8440-1f6a429b9fa1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsAmount_019c29b8-05fd-7c6b-b9b2-84c114494ede" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsAmount_019c29b8-05fd-7c6b-b9b2-84c114494ede" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmountAbstract_019c29b9-4d3e-750a-a92d-af5d250f16a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmountAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmountAbstract_019c29b9-4d3e-750a-a92d-af5d250f16a5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiAmount_019c29b8-05fd-76ac-bb91-6cac499108e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationFdiiAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmountAbstract_019c29b9-4d3e-750a-a92d-af5d250f16a5" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiAmount_019c29b8-05fd-76ac-bb91-6cac499108e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCredits_019c29b8-05fd-71f4-8d3c-a2e072cc6575" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxCredits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCredits_019c29b8-05fd-71f4-8d3c-a2e072cc6575" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseAbstract_019c29c0-8f6e-7cc8-a024-ccc28767fc8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseAbstract_019c29c0-8f6e-7cc8-a024-ccc28767fc8a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c29b8-05fd-7410-9868-e9baee37fdef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseAbstract_019c29c0-8f6e-7cc8-a024-ccc28767fc8a" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c29b8-05fd-7410-9868-e9baee37fdef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c29b8-05fd-7a7f-b07a-5f4dcf70fd00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseAbstract_019c29c0-8f6e-7cc8-a024-ccc28767fc8a" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c29b8-05fd-7a7f-b07a-5f4dcf70fd00" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c29b8-05fd-7df9-b8e7-d4bfdd5b43f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c29b8-05fd-7df9-b8e7-d4bfdd5b43f7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c29b8-05fd-7ba0-97e3-a9d92fa14352" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c299e-ca5e-7d24-97a7-e6e6cea4a2cb" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c29b8-05fd-7ba0-97e3-a9d92fa14352" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c29bd-c864-766f-b9bb-3b2b8e4862a1" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c29bc-78e7-7dea-9b95-fba6b6904fa0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c29bc-78e7-7dea-9b95-fba6b6904fa0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c29bc-78e7-716d-828a-052617e0bd6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c29bc-78e7-716d-828a-052617e0bd6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract_019c29cc-2bac-7c6d-89b8-10b5488c3832" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract_019c29cc-2bac-7c6d-89b8-10b5488c3832" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019c29bc-78e7-7c06-876b-68f5ceaa9e28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract_019c29cc-2bac-7c6d-89b8-10b5488c3832" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019c29bc-78e7-7c06-876b-68f5ceaa9e28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectOfIndefinitelyReinvestingForeignEarningsPercent_019c29bc-78e7-7424-9460-e5bb36d3964a" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectOfIndefinitelyReinvestingForeignEarningsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract_019c29cc-2bac-7c6d-89b8-10b5488c3832" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationDeductionEffectOfIndefinitelyReinvestingForeignEarningsPercent_019c29bc-78e7-7424-9460-e5bb36d3964a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent_019c29bc-78e7-7dbe-bc78-aa85b7115ece" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_EffectiveIncomeTaxRateReconciliationForeignTaxEffectsPercentAbstract_019c29cc-2bac-7c6d-89b8-10b5488c3832" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent_019c29bc-78e7-7dbe-bc78-aa85b7115ece" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsPercent_019c29bc-78e7-7b0f-b2e3-fac48520d0e6" xlink:href="fcfs-20251231.xsd#fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_fcfs_EffectiveIncomeTaxRateReconciliationCrossBorderOtherJurisdictionsPercent_019c29bc-78e7-7b0f-b2e3-fac48520d0e6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectPercentAbstract_019c29c8-1772-79d7-a888-4c57c56c5927" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectPercentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectPercentAbstract_019c29c8-1772-79d7-a888-4c57c56c5927" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_019c29bc-78e7-7f0a-b918-370536be8d0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectPercentAbstract_019c29c8-1772-79d7-a888-4c57c56c5927" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_019c29bc-78e7-7f0a-b918-370536be8d0e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_019c29bc-78e7-7354-ad2c-264f94910d76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_019c29bc-78e7-7354-ad2c-264f94910d76" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAbstract_019c29cd-6f51-750b-949a-a8d341dab511" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAbstract_019c29cd-6f51-750b-949a-a8d341dab511" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c29bc-78e7-7bf3-bed8-93cbb19a3ff3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAbstract_019c29cd-6f51-750b-949a-a8d341dab511" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c29bc-78e7-7bf3-bed8-93cbb19a3ff3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c29bc-78e7-7b28-b381-ea870d68cd5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAbstract_019c29cd-6f51-750b-949a-a8d341dab511" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c29bc-78e7-7b28-b381-ea870d68cd5b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c29bc-78e7-742a-b830-110cd5aa5209" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c29bc-78e7-742a-b830-110cd5aa5209" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c29bc-78e7-75b7-bbf5-f4e87869042d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c299e-f80f-7f6d-80d0-49b0f5d887e8" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c29bc-78e7-75b7-bbf5-f4e87869042d" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/IncomeTaxesScheduleofIncomeTaxesPaidDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#IncomeTaxesScheduleofIncomeTaxesPaidDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/IncomeTaxesScheduleofIncomeTaxesPaidDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c29d4-1f79-7962-a6cc-1f0caf6464bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:to="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c29d4-1f79-7962-a6cc-1f0caf6464bc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c29d4-1f79-7c42-b22f-b3fbafcd4d28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c29d4-1f79-7962-a6cc-1f0caf6464bc" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c29d4-1f79-7c42-b22f-b3fbafcd4d28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-7c42-b22f-b3fbafcd4d28_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c29d4-1f79-7c42-b22f-b3fbafcd4d28" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-7c42-b22f-b3fbafcd4d28_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-73ad-9ccd-cd0019557610" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c29d4-1f79-7c42-b22f-b3fbafcd4d28" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-73ad-9ccd-cd0019557610" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ForeignTaxAuthoritiesExcludingMexicoAndUnitedKingdomMember_019c2f22-2daa-7806-86d0-eaeb70f10125" xlink:href="fcfs-20251231.xsd#fcfs_ForeignTaxAuthoritiesExcludingMexicoAndUnitedKingdomMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-73ad-9ccd-cd0019557610" xlink:to="loc_fcfs_ForeignTaxAuthoritiesExcludingMexicoAndUnitedKingdomMember_019c2f22-2daa-7806-86d0-eaeb70f10125" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_019c29d4-1f79-727e-ba43-cb36ea1993ee" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-73ad-9ccd-cd0019557610" xlink:to="loc_country_MX_019c29d4-1f79-727e-ba43-cb36ea1993ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019c29d4-1f79-7634-8943-b22d0624caea" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c29d4-1f79-73ad-9ccd-cd0019557610" xlink:to="loc_country_GB_019c29d4-1f79-7634-8943-b22d0624caea" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c29d4-1f79-770a-ab1a-cc83123393cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidFederalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:to="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c29d4-1f79-770a-ab1a-cc83123393cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c29d4-1f79-7298-a088-8702837b1d33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:to="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c29d4-1f79-7298-a088-8702837b1d33" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c29d4-1f79-7303-bec1-72c4f4b86ce3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidForeignAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:to="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c29d4-1f79-7303-bec1-72c4f4b86ce3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019c29d4-1f79-7e20-8098-e7727e88cb5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c29d4-1f79-7225-baa4-06256558ff72" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019c29d4-1f79-7e20-8098-e7727e88cb5b" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#CommitmentsandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GuaranteeObligationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfGuaranteeObligationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b05678ac-aa55-42f1-a09c-632323e285be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ee86a7f9-d5a1-4748-ab3d-783af5e36c8d" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b05678ac-aa55-42f1-a09c-632323e285be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractsMember_3c8aab44-7c68-400f-a7e8-7e08defb79e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForwardContractsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b05678ac-aa55-42f1-a09c-632323e285be" xlink:to="loc_us-gaap_ForwardContractsMember_3c8aab44-7c68-400f-a7e8-7e08defb79e3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_4bbf978b-5681-4719-8860-c7b462a051bc" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_srt_CurrencyAxis_4bbf978b-5681-4719-8860-c7b462a051bc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_4bbf978b-5681-4719-8860-c7b462a051bc_default" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_4bbf978b-5681-4719-8860-c7b462a051bc" xlink:to="loc_currency_AllCurrenciesDomain_4bbf978b-5681-4719-8860-c7b462a051bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_97416e65-4fa5-479c-a4ea-78a0b4884431" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_4bbf978b-5681-4719-8860-c7b462a051bc" xlink:to="loc_currency_AllCurrenciesDomain_97416e65-4fa5-479c-a4ea-78a0b4884431" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_XAU_b8017196-a104-4295-bb5a-6557297a8808" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_XAU"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_97416e65-4fa5-479c-a4ea-78a0b4884431" xlink:to="loc_currency_XAU_b8017196-a104-4295-bb5a-6557297a8808" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_019c29de-7190-7224-9f1c-f78b4d8f560a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_srt_LitigationCaseAxis_019c29de-7190-7224-9f1c-f78b4d8f560a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019c29de-7190-7224-9f1c-f78b4d8f560a_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_019c29de-7190-7224-9f1c-f78b4d8f560a" xlink:to="loc_srt_LitigationCaseTypeDomain_019c29de-7190-7224-9f1c-f78b4d8f560a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019c29de-7190-77a7-b2a3-63d1c30a8bfa" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_019c29de-7190-7224-9f1c-f78b4d8f560a" xlink:to="loc_srt_LitigationCaseTypeDomain_019c29de-7190-77a7-b2a3-63d1c30a8bfa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_CFPBMember_019c29df-3f2e-7efb-9877-8a000f54a06a" xlink:href="fcfs-20251231.xsd#fcfs_CFPBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_019c29de-7190-77a7-b2a3-63d1c30a8bfa" xlink:to="loc_fcfs_CFPBMember_019c29df-3f2e-7efb-9877-8a000f54a06a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_019c29de-0661-7083-bbd5-c4a891923204" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LitigationStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_us-gaap_LitigationStatusAxis_019c29de-0661-7083-bbd5-c4a891923204" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_019c29de-0661-7083-bbd5-c4a891923204_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_019c29de-0661-7083-bbd5-c4a891923204" xlink:to="loc_us-gaap_LitigationStatusDomain_019c29de-0661-7083-bbd5-c4a891923204_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_019c29de-0661-7142-ad19-dede278b0a6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_019c29de-0661-7083-bbd5-c4a891923204" xlink:to="loc_us-gaap_LitigationStatusDomain_019c29de-0661-7142-ad19-dede278b0a6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SettledLitigationMember_019c29de-0661-70e8-8526-46f3dea2d84d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SettledLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_019c29de-0661-7142-ad19-dede278b0a6f" xlink:to="loc_us-gaap_SettledLitigationMember_019c29de-0661-70e8-8526-46f3dea2d84d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019c29df-9009-79f3-8402-e90cc51657dc" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_srt_RangeAxis_019c29df-9009-79f3-8402-e90cc51657dc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c29df-9009-79f3-8402-e90cc51657dc_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019c29df-9009-79f3-8402-e90cc51657dc" xlink:to="loc_srt_RangeMember_019c29df-9009-79f3-8402-e90cc51657dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c29df-9009-7300-b698-6bdb869c80c9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019c29df-9009-79f3-8402-e90cc51657dc" xlink:to="loc_srt_RangeMember_019c29df-9009-7300-b698-6bdb869c80c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019c29df-a719-76b2-939d-3506c8d70fbd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019c29df-9009-7300-b698-6bdb869c80c9" xlink:to="loc_srt_MaximumMember_019c29df-a719-76b2-939d-3506c8d70fbd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c29e2-af6d-7b77-8afa-cc28bc4714cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_5ebb7169-0948-4be0-bc5e-85c59b3a8d8e" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c29e2-af6d-7b77-8afa-cc28bc4714cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019c29e2-af6d-7b77-8afa-cc28bc4714cd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c29e2-af6d-7b77-8afa-cc28bc4714cd" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019c29e2-af6d-7b77-8afa-cc28bc4714cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019c29e2-af6d-747b-945d-8a83ecce768b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c29e2-af6d-7b77-8afa-cc28bc4714cd" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019c29e2-af6d-747b-945d-8a83ecce768b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeOfIndebtednessOfOthersMember_019c29e2-efe8-735a-8055-d9a2f4b348d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GuaranteeOfIndebtednessOfOthersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019c29e2-af6d-747b-945d-8a83ecce768b" xlink:to="loc_us-gaap_GuaranteeOfIndebtednessOfOthersMember_019c29e2-efe8-735a-8055-d9a2f4b348d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_InvestmentContractWeight_964e227b-89da-4445-af9b-b615ba480680" xlink:href="fcfs-20251231.xsd#fcfs_InvestmentContractWeight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_fcfs_InvestmentContractWeight_964e227b-89da-4445-af9b-b615ba480680" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAverageForwardPrice_87e4bc55-2629-4330-9268-b3d7c0c04711" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAverageForwardPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_us-gaap_DerivativeAverageForwardPrice_87e4bc55-2629-4330-9268-b3d7c0c04711" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_019c29e0-d060-7fc3-905c-343ec80bc706" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_019c29e0-d060-7fc3-905c-343ec80bc706" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualPayments_019c29de-0661-774d-9884-7731f32002c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyAccrualPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_us-gaap_LossContingencyAccrualPayments_019c29de-0661-774d-9884-7731f32002c2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_019c29e2-834d-7c15-952d-b8676c1a186a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_ad1f22c8-e5a2-4bf7-baf6-962972722e32" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_019c29e2-834d-7c15-952d-b8676c1a186a" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsGoodwillRollforwardDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#GoodwillandOtherIntangibleAssetsGoodwillRollforwardDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsGoodwillRollforwardDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_4bbe001e-4a04-4416-ad5f-911753976f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_310bd110-1704-4455-ad0d-a55939d914d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_4bbe001e-4a04-4416-ad5f-911753976f5f" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_310bd110-1704-4455-ad0d-a55939d914d1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_387af253-8f01-455d-98e2-66dfaa83de58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_310bd110-1704-4455-ad0d-a55939d914d1" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_387af253-8f01-455d-98e2-66dfaa83de58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_387af253-8f01-455d-98e2-66dfaa83de58_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_387af253-8f01-455d-98e2-66dfaa83de58" xlink:to="loc_us-gaap_SegmentDomain_387af253-8f01-455d-98e2-66dfaa83de58_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_387af253-8f01-455d-98e2-66dfaa83de58" xlink:to="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_USPawnSegmentMember_13aaed88-ccdd-4af2-8928-c1b6033a3acb" xlink:href="fcfs-20251231.xsd#fcfs_USPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:to="loc_fcfs_USPawnSegmentMember_13aaed88-ccdd-4af2-8928-c1b6033a3acb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LatinAmericaPawnSegmentMember_214ec085-640c-4880-928b-01ea504fcd17" xlink:href="fcfs-20251231.xsd#fcfs_LatinAmericaPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:to="loc_fcfs_LatinAmericaPawnSegmentMember_214ec085-640c-4880-928b-01ea504fcd17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RetailPOSPaymentSolutionsMember_19cd2969-720d-4084-beff-19b2938c4e0b" xlink:href="fcfs-20251231.xsd#fcfs_RetailPOSPaymentSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:to="loc_fcfs_RetailPOSPaymentSolutionsMember_19cd2969-720d-4084-beff-19b2938c4e0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.PawnSegmentMember_019c055d-17d9-7edf-934d-ff2d4d0aca41" xlink:href="fcfs-20251231.xsd#fcfs_U.K.PawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d359b3de-f0fb-437f-8468-3a8c54c11543" xlink:to="loc_fcfs_U.K.PawnSegmentMember_019c055d-17d9-7edf-934d-ff2d4d0aca41" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_310bd110-1704-4455-ad0d-a55939d914d1" xlink:to="loc_srt_StatementGeographicalAxis_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb" xlink:to="loc_srt_SegmentGeographicalDomain_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_311e2698-186e-4d49-a22f-e66e369b56f5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_17c09170-7cc3-44ad-a54f-e4cfdba6b4bb" xlink:to="loc_srt_SegmentGeographicalDomain_311e2698-186e-4d49-a22f-e66e369b56f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_c7082523-1498-48c4-9461-ad4a68f0e382" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_311e2698-186e-4d49-a22f-e66e369b56f5" xlink:to="loc_country_US_c7082523-1498-48c4-9461-ad4a68f0e382" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LatinAmericaMember_3e221416-ae55-4ef3-8a7a-b0485e5bf100" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_311e2698-186e-4d49-a22f-e66e369b56f5" xlink:to="loc_srt_LatinAmericaMember_3e221416-ae55-4ef3-8a7a-b0485e5bf100" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019c055c-c775-72bf-9539-897ece7fbf4c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_310bd110-1704-4455-ad0d-a55939d914d1" xlink:to="loc_srt_ConsolidationItemsAxis_019c055c-c775-72bf-9539-897ece7fbf4c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019c055c-c775-72bf-9539-897ece7fbf4c_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019c055c-c775-72bf-9539-897ece7fbf4c" xlink:to="loc_srt_ConsolidationItemsDomain_019c055c-c775-72bf-9539-897ece7fbf4c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019c055c-c775-7a20-a023-be987200c0f9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019c055c-c775-72bf-9539-897ece7fbf4c" xlink:to="loc_srt_ConsolidationItemsDomain_019c055c-c775-7a20-a023-be987200c0f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019c055c-c775-7ad5-9def-63b48aa7c800" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019c055c-c775-7a20-a023-be987200c0f9" xlink:to="loc_us-gaap_OperatingSegmentsMember_019c055c-c775-7ad5-9def-63b48aa7c800" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_186b830c-9aeb-48c4-b782-a73d0c3fd288" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4bbe001e-4a04-4416-ad5f-911753976f5f" xlink:to="loc_us-gaap_Goodwill_186b830c-9aeb-48c4-b782-a73d0c3fd288" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_9adcf16b-440a-4643-a91f-03dc699623b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4bbe001e-4a04-4416-ad5f-911753976f5f" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_9adcf16b-440a-4643-a91f-03dc699623b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_21b41440-bfdc-4210-a2b9-f6aa3a435c93" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_4bbe001e-4a04-4416-ad5f-911753976f5f" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_21b41440-bfdc-4210-a2b9-f6aa3a435c93" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_8d2791fc-819b-4b2f-8b30-4eb72693e261" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsAmortizationDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#GoodwillandOtherIntangibleAssetsIntangibleAssetsAmortizationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsAmortizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_aaffb7c7-fdf0-4ab9-8eff-bc951438ad2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_aaffb7c7-fdf0-4ab9-8eff-bc951438ad2b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_aaffb7c7-fdf0-4ab9-8eff-bc951438ad2b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_be7ee2a0-ba1f-4dc7-b95f-17a231c56b03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_22119800-8756-4a15-bb8c-2c26e77abd5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:to="loc_us-gaap_CustomerRelationshipsMember_22119800-8756-4a15-bb8c-2c26e77abd5a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_MerchantRelationshipsMember_c911cca1-e431-4980-923d-bc5c5333ae38" xlink:href="fcfs-20251231.xsd#fcfs_MerchantRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:to="loc_fcfs_MerchantRelationshipsMember_c911cca1-e431-4980-923d-bc5c5333ae38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DevelopedTechnologyMember_3c958ef9-f64f-4c8a-846f-3f017accdc8d" xlink:href="fcfs-20251231.xsd#fcfs_DevelopedTechnologyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:to="loc_fcfs_DevelopedTechnologyMember_3c958ef9-f64f-4c8a-846f-3f017accdc8d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_7a72971b-e3c7-4510-a0e4-a26514b2159e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_983c0bdf-1084-4717-9697-3d9f221b7ff8" xlink:to="loc_us-gaap_TradeNamesMember_7a72971b-e3c7-4510-a0e4-a26514b2159e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b9811e66-5924-4605-8f89-40fe0b3b3d94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b9811e66-5924-4605-8f89-40fe0b3b3d94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_98e03e39-112c-4327-835e-3af5ea5c8ab8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_98e03e39-112c-4327-835e-3af5ea5c8ab8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_20fc8eb8-9aaa-4e9a-b233-8be3583f28fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_20fc8eb8-9aaa-4e9a-b233-8be3583f28fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Amortizationexpensesofintangibleassets_b264756c-f393-4d70-97df-4612d00e2d6b" xlink:href="fcfs-20251231.xsd#fcfs_Amortizationexpensesofintangibleassets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_fcfs_Amortizationexpensesofintangibleassets_b264756c-f393-4d70-97df-4612d00e2d6b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Weightedaverageamortizationperiodremaininginyears_e22e08a2-d978-472c-9c55-926652a0f424" xlink:href="fcfs-20251231.xsd#fcfs_Weightedaverageamortizationperiodremaininginyears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_b0c5beba-9294-4701-87e0-677606f80046" xlink:to="loc_fcfs_Weightedaverageamortizationperiodremaininginyears_e22e08a2-d978-472c-9c55-926652a0f424" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsGoodwillFutureAmortizationDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#GoodwillandOtherIntangibleAssetsGoodwillFutureAmortizationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsGoodwillFutureAmortizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f9bf37fc-c942-4fcf-be78-2a3a7733f270" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f9bf37fc-c942-4fcf-be78-2a3a7733f270" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_7bc24cc2-7095-4c30-8258-d2904788077d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f9bf37fc-c942-4fcf-be78-2a3a7733f270" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_7bc24cc2-7095-4c30-8258-d2904788077d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_7bc24cc2-7095-4c30-8258-d2904788077d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_7bc24cc2-7095-4c30-8258-d2904788077d" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_7bc24cc2-7095-4c30-8258-d2904788077d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_8f08c752-7eb0-4a79-8454-4ddbe12248a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_7bc24cc2-7095-4c30-8258-d2904788077d" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_8f08c752-7eb0-4a79-8454-4ddbe12248a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillMember_e2a5729d-6d77-4cfb-965b-978da9157e1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_8f08c752-7eb0-4a79-8454-4ddbe12248a0" xlink:to="loc_us-gaap_GoodwillMember_e2a5729d-6d77-4cfb-965b-978da9157e1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_323240c9-73a9-46ff-8e4a-0b10f3e29ba3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_323240c9-73a9-46ff-8e4a-0b10f3e29ba3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_280ae411-7b5c-4f13-9d4e-9d70c70c9462" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_280ae411-7b5c-4f13-9d4e-9d70c70c9462" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_3a159722-7fd0-4f99-8ff3-159fcb80375d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_3a159722-7fd0-4f99-8ff3-159fcb80375d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_0aba626d-6d14-4d64-949e-67d7b33f7ff2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_0aba626d-6d14-4d64-949e-67d7b33f7ff2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_019c2a1f-e4c0-7f56-bd46-1101c745de4a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_019c2a1f-e4c0-7f56-bd46-1101c745de4a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_Totalfutureamortization_8ace5dfc-3ebb-4128-8234-17563af7ef58" xlink:href="fcfs-20251231.xsd#fcfs_Totalfutureamortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_79368023-6968-4082-b162-5e22f16a9459" xlink:to="loc_fcfs_Totalfutureamortization_8ace5dfc-3ebb-4128-8234-17563af7ef58" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsIndefiniteLivedIntangibleAssetsDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#GoodwillandOtherIntangibleAssetsIndefiniteLivedIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/GoodwillandOtherIntangibleAssetsIndefiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_08c90958-1f8f-4d52-a133-f6ebfbec289c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_2fa755ad-2dee-475a-a6ac-9d7a8d427674" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_08c90958-1f8f-4d52-a133-f6ebfbec289c" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_2fa755ad-2dee-475a-a6ac-9d7a8d427674" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_3b5aff80-ea50-4c9f-8128-60df65b04a45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_2fa755ad-2dee-475a-a6ac-9d7a8d427674" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_3b5aff80-ea50-4c9f-8128-60df65b04a45" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_3b5aff80-ea50-4c9f-8128-60df65b04a45_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_3b5aff80-ea50-4c9f-8128-60df65b04a45" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_3b5aff80-ea50-4c9f-8128-60df65b04a45_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491bb9f-22fc-4b33-a9dd-bafa4925be4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_3b5aff80-ea50-4c9f-8128-60df65b04a45" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491bb9f-22fc-4b33-a9dd-bafa4925be4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_80894546-a634-4f40-84eb-fc84a23938a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491bb9f-22fc-4b33-a9dd-bafa4925be4e" xlink:to="loc_us-gaap_TradeNamesMember_80894546-a634-4f40-84eb-fc84a23938a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_fef76fee-44d5-4cbd-a249-016bebd092b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LicensingAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_7491bb9f-22fc-4b33-a9dd-bafa4925be4e" xlink:to="loc_us-gaap_LicensingAgreementsMember_fef76fee-44d5-4cbd-a249-016bebd092b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_75f259c1-12a0-4a45-8abc-59a9034f8785" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_08c90958-1f8f-4d52-a133-f6ebfbec289c" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_75f259c1-12a0-4a45-8abc-59a9034f8785" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#EquityCompensationPlansandShareBasedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f794809e-09cf-4b9f-8fcd-e3d8b4fba2c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f794809e-09cf-4b9f-8fcd-e3d8b4fba2c1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PlanparticipantsAxis_124f38fc-2175-4382-8367-14c1370086af" xlink:href="fcfs-20251231.xsd#fcfs_PlanparticipantsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f794809e-09cf-4b9f-8fcd-e3d8b4fba2c1" xlink:to="loc_fcfs_PlanparticipantsAxis_124f38fc-2175-4382-8367-14c1370086af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PlanparticipantsDomain_124f38fc-2175-4382-8367-14c1370086af_default" xlink:href="fcfs-20251231.xsd#fcfs_PlanparticipantsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_fcfs_PlanparticipantsAxis_124f38fc-2175-4382-8367-14c1370086af" xlink:to="loc_fcfs_PlanparticipantsDomain_124f38fc-2175-4382-8367-14c1370086af_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PlanparticipantsDomain_06b97fbc-b52f-4dbb-a1c1-33ccd5b710c0" xlink:href="fcfs-20251231.xsd#fcfs_PlanparticipantsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_fcfs_PlanparticipantsAxis_124f38fc-2175-4382-8367-14c1370086af" xlink:to="loc_fcfs_PlanparticipantsDomain_06b97fbc-b52f-4dbb-a1c1-33ccd5b710c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PriortomergerMember_d983b02c-7a3b-42bd-8859-bc92aa5bd4d2" xlink:href="fcfs-20251231.xsd#fcfs_PriortomergerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_PlanparticipantsDomain_06b97fbc-b52f-4dbb-a1c1-33ccd5b710c0" xlink:to="loc_fcfs_PriortomergerMember_d983b02c-7a3b-42bd-8859-bc92aa5bd4d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d0c0e303-d941-4a86-912a-096c79ae4585" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f794809e-09cf-4b9f-8fcd-e3d8b4fba2c1" xlink:to="loc_us-gaap_AwardTypeAxis_d0c0e303-d941-4a86-912a-096c79ae4585" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d0c0e303-d941-4a86-912a-096c79ae4585_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_d0c0e303-d941-4a86-912a-096c79ae4585" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d0c0e303-d941-4a86-912a-096c79ae4585_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_d0c0e303-d941-4a86-912a-096c79ae4585" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PerformanceBasedAwardsMember_0c90b261-5339-4645-b55b-ed6ebd6c3107" xlink:href="fcfs-20251231.xsd#fcfs_PerformanceBasedAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_PerformanceBasedAwardsMember_0c90b261-5339-4645-b55b-ed6ebd6c3107" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NonvestedCommonStockAwardsMember_1565e220-84d5-4a52-a24c-dc00cc57b1bb" xlink:href="fcfs-20251231.xsd#fcfs_NonvestedCommonStockAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_NonvestedCommonStockAwardsMember_1565e220-84d5-4a52-a24c-dc00cc57b1bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_TimeBasedSharesMember_8c6087a4-93da-4db9-b75c-49450474362c" xlink:href="fcfs-20251231.xsd#fcfs_TimeBasedSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_TimeBasedSharesMember_8c6087a4-93da-4db9-b75c-49450474362c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_0a1b653a-0318-4094-bb47-2a39a889bd8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_us-gaap_CommonStockMember_0a1b653a-0318-4094-bb47-2a39a889bd8b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2022PerformanceBasedAwardsMember_fbd8e325-d08a-4b13-90a4-0d3fc16ac254" xlink:href="fcfs-20251231.xsd#fcfs_A2022PerformanceBasedAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_A2022PerformanceBasedAwardsMember_fbd8e325-d08a-4b13-90a4-0d3fc16ac254" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2023PerformanceBasedAwardsMember_bd6f0f51-c529-4c33-857a-17edd3066f35" xlink:href="fcfs-20251231.xsd#fcfs_A2023PerformanceBasedAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_A2023PerformanceBasedAwardsMember_bd6f0f51-c529-4c33-857a-17edd3066f35" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A2024PerformanceBasedAwardsMember_ab01920c-c1ba-46d4-91bb-f2d1e62e7cb1" xlink:href="fcfs-20251231.xsd#fcfs_A2024PerformanceBasedAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c69d9555-b2e0-4a5e-9b51-87bd8e5238fa" xlink:to="loc_fcfs_A2024PerformanceBasedAwardsMember_ab01920c-c1ba-46d4-91bb-f2d1e62e7cb1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_b06c1785-8f81-4e66-8b35-4c1a857b4886" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f794809e-09cf-4b9f-8fcd-e3d8b4fba2c1" xlink:to="loc_srt_RangeAxis_b06c1785-8f81-4e66-8b35-4c1a857b4886" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_b06c1785-8f81-4e66-8b35-4c1a857b4886_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_b06c1785-8f81-4e66-8b35-4c1a857b4886" xlink:to="loc_srt_RangeMember_b06c1785-8f81-4e66-8b35-4c1a857b4886_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_1b00b5a3-93d0-4181-bdb7-5a1804c3926a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_b06c1785-8f81-4e66-8b35-4c1a857b4886" xlink:to="loc_srt_RangeMember_1b00b5a3-93d0-4181-bdb7-5a1804c3926a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_56d61a02-a680-4372-a671-05076b05be3a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1b00b5a3-93d0-4181-bdb7-5a1804c3926a" xlink:to="loc_srt_MinimumMember_56d61a02-a680-4372-a671-05076b05be3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MedianMember_86be4e01-ea23-41e8-a941-d3c588fdbc55" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MedianMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1b00b5a3-93d0-4181-bdb7-5a1804c3926a" xlink:to="loc_srt_MedianMember_86be4e01-ea23-41e8-a941-d3c588fdbc55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d48d48df-eeda-45a0-98e9-2ab2446c3a89" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1b00b5a3-93d0-4181-bdb7-5a1804c3926a" xlink:to="loc_srt_MaximumMember_d48d48df-eeda-45a0-98e9-2ab2446c3a89" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_8bd7ff5a-6e81-46ce-bec9-035e702c6abd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_8bd7ff5a-6e81-46ce-bec9-035e702c6abd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a02fbbb2-eb31-46f0-ac4a-316df44fd7bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a02fbbb2-eb31-46f0-ac4a-316df44fd7bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsAdditionalDisclosuresAbstract_9fbcd0e2-f960-4830-bc48-ccbf59b9673f" xlink:href="fcfs-20251231.xsd#fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsAdditionalDisclosuresAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:to="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsAdditionalDisclosuresAbstract_9fbcd0e2-f960-4830-bc48-ccbf59b9673f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d3e32de0-1968-432a-9307-3d1ead8f5a8a" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod_fe9e5600-afc9-4192-979c-0567f350a8ff" xlink:href="fcfs-20251231.xsd#fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod_fe9e5600-afc9-4192-979c-0567f350a8ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAmountOfAwardEarnedTargetShareAward_029223c9-6c91-429a-a485-55659cd2b601" xlink:href="fcfs-20251231.xsd#fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAmountOfAwardEarnedTargetShareAward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardAmountOfAwardEarnedTargetShareAward_029223c9-6c91-429a-a485-55659cd2b601" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_34984680-f674-4dcd-8962-ccc9f9d812bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_34984680-f674-4dcd-8962-ccc9f9d812bb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalIntrinsicValue_e1dea27f-9878-441c-b03e-194346c7a504" xlink:href="fcfs-20251231.xsd#fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalIntrinsicValue_e1dea27f-9878-441c-b03e-194346c7a504" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsOutstandingTotalIntrinsicValue_1b54aa09-838a-403c-a96c-b5ad1d3ceb85" xlink:href="fcfs-20251231.xsd#fcfs_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsOutstandingTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_fcfs_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsOutstandingTotalIntrinsicValue_1b54aa09-838a-403c-a96c-b5ad1d3ceb85" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_c0867637-3584-4ac0-a967-fb45fc268b01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_c0867637-3584-4ac0-a967-fb45fc268b01" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_8bea6466-6b83-4748-882d-d8f5cd8532b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract_dd648232-0b45-4b75-9e8e-00f73e5adc2e" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_8bea6466-6b83-4748-882d-d8f5cd8532b7" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationRestrictedStockUnitAwardActivityDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#EquityCompensationPlansandShareBasedCompensationRestrictedStockUnitAwardActivityDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationRestrictedStockUnitAwardActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4761614f-364f-40bd-8cf0-9884e28d8df3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9f04d36e-1abe-4bbc-8308-df99cc0d3a30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4761614f-364f-40bd-8cf0-9884e28d8df3" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9f04d36e-1abe-4bbc-8308-df99cc0d3a30" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9f04d36e-1abe-4bbc-8308-df99cc0d3a30" xlink:to="loc_us-gaap_AwardTypeAxis_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_bc171b0d-9d01-4ee7-b37e-dc1ce35bbec7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_6532e6d9-ea72-49f5-ab88-bb0f1c7cc927" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:to="loc_us-gaap_PerformanceSharesMember_6532e6d9-ea72-49f5-ab88-bb0f1c7cc927" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_TimeBasedSharesMember_e0fb7e4e-6c6b-4d86-b1c7-1043783242fb" xlink:href="fcfs-20251231.xsd#fcfs_TimeBasedSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:to="loc_fcfs_TimeBasedSharesMember_e0fb7e4e-6c6b-4d86-b1c7-1043783242fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PerformanceBasedCanceledMember_e698d96b-2c5f-488b-9fa4-c847236147ce" xlink:href="fcfs-20251231.xsd#fcfs_PerformanceBasedCanceledMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:to="loc_fcfs_PerformanceBasedCanceledMember_e698d96b-2c5f-488b-9fa4-c847236147ce" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_TimeBasedCanceledMember_42dfd91e-d8ad-4f61-b12b-6879d2a71eab" xlink:href="fcfs-20251231.xsd#fcfs_TimeBasedCanceledMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_66d18b25-e055-4c9b-a08b-7dd59bf61b6a" xlink:to="loc_fcfs_TimeBasedCanceledMember_42dfd91e-d8ad-4f61-b12b-6879d2a71eab" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_b5c725ab-b625-403f-a236-8eae5a2cb029" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4761614f-364f-40bd-8cf0-9884e28d8df3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_b5c725ab-b625-403f-a236-8eae5a2cb029" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_68ac488d-b1ed-44d3-9159-4be5102f5b2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_b5c725ab-b625-403f-a236-8eae5a2cb029" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_68ac488d-b1ed-44d3-9159-4be5102f5b2e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1b9ff0f3-d3a0-4a40-9c02-0f3aa9482d17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_b5c725ab-b625-403f-a236-8eae5a2cb029" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1b9ff0f3-d3a0-4a40-9c02-0f3aa9482d17" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_279a4366-4fbb-4e08-a9df-9891aef0f903" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_b5c725ab-b625-403f-a236-8eae5a2cb029" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_279a4366-4fbb-4e08-a9df-9891aef0f903" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_24df4686-524a-4382-9760-4fff47b2d1c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_98312641-5b2f-4d56-b84f-127ab1fd345c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4761614f-364f-40bd-8cf0-9884e28d8df3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_98312641-5b2f-4d56-b84f-127ab1fd345c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_dd78afb6-e234-49b4-a25a-63b6cf9f8a6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_98312641-5b2f-4d56-b84f-127ab1fd345c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_dd78afb6-e234-49b4-a25a-63b6cf9f8a6c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_a9f0d8dc-c213-4492-b2eb-ca1c0170929c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_98312641-5b2f-4d56-b84f-127ab1fd345c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_a9f0d8dc-c213-4492-b2eb-ca1c0170929c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_ae4e0832-06ec-468b-9acd-ef40a84ded2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_98312641-5b2f-4d56-b84f-127ab1fd345c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_ae4e0832-06ec-468b-9acd-ef40a84ded2c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c59c4a35-66f5-4a78-81d9-25e97fc14b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_65440d69-eb65-49e1-913a-8a40b78565ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4761614f-364f-40bd-8cf0-9884e28d8df3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_65440d69-eb65-49e1-913a-8a40b78565ec" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationWarrantyandOptionsActivityDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#EquityCompensationPlansandShareBasedCompensationWarrantyandOptionsActivityDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationWarrantyandOptionsActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9b1c6b02-978f-44bc-aea3-e2cb22b64a57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c352a9c2-02d8-4684-9a12-9815820e8ab8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9b1c6b02-978f-44bc-aea3-e2cb22b64a57" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c352a9c2-02d8-4684-9a12-9815820e8ab8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_652ca164-b86c-409a-b822-411bf4c0dafe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c352a9c2-02d8-4684-9a12-9815820e8ab8" xlink:to="loc_us-gaap_AwardTypeAxis_652ca164-b86c-409a-b822-411bf4c0dafe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_652ca164-b86c-409a-b822-411bf4c0dafe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_652ca164-b86c-409a-b822-411bf4c0dafe" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_652ca164-b86c-409a-b822-411bf4c0dafe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e34bfaf3-a448-40b4-a17d-9a49f6e886b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_652ca164-b86c-409a-b822-411bf4c0dafe" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e34bfaf3-a448-40b4-a17d-9a49f6e886b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceRollForward_df52074f-be27-4519-80f1-95127f20cae1" xlink:href="fcfs-20251231.xsd#fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9b1c6b02-978f-44bc-aea3-e2cb22b64a57" xlink:to="loc_fcfs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceRollForward_df52074f-be27-4519-80f1-95127f20cae1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationSharebasedCompensationAllocationofPeriodCostsDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#EquityCompensationPlansandShareBasedCompensationSharebasedCompensationAllocationofPeriodCostsDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/EquityCompensationPlansandShareBasedCompensationSharebasedCompensationAllocationofPeriodCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_85d5d615-d4ef-489d-8172-5cb0aa4d4a4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_91be4262-aaf7-488d-8853-ad3ade80a6ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_85d5d615-d4ef-489d-8172-5cb0aa4d4a4d" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_91be4262-aaf7-488d-8853-ad3ade80a6ee" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_b6a47653-6256-4c0c-b2d2-4597a923031d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_91be4262-aaf7-488d-8853-ad3ade80a6ee" xlink:to="loc_us-gaap_AwardTypeAxis_b6a47653-6256-4c0c-b2d2-4597a923031d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b6a47653-6256-4c0c-b2d2-4597a923031d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_b6a47653-6256-4c0c-b2d2-4597a923031d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b6a47653-6256-4c0c-b2d2-4597a923031d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_fe3ec484-e1c1-47fe-98d4-860f78735721" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_b6a47653-6256-4c0c-b2d2-4597a923031d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_fe3ec484-e1c1-47fe-98d4-860f78735721" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_NonvestedCommonStockAwardsMember_ed94aab5-5ea3-4bfa-8468-4611b0ef60f7" xlink:href="fcfs-20251231.xsd#fcfs_NonvestedCommonStockAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_fe3ec484-e1c1-47fe-98d4-860f78735721" xlink:to="loc_fcfs_NonvestedCommonStockAwardsMember_ed94aab5-5ea3-4bfa-8468-4611b0ef60f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_3a742d50-f900-4f27-950c-c9a6c4e959b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_85d5d615-d4ef-489d-8172-5cb0aa4d4a4d" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_3a742d50-f900-4f27-950c-c9a6c4e959b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_9aafce2a-d44f-48ed-95ea-92c78e5bb173" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_85d5d615-d4ef-489d-8172-5cb0aa4d4a4d" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_9aafce2a-d44f-48ed-95ea-92c78e5bb173" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_f3b281b5-1ce6-40ec-899a-5531832501e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_85d5d615-d4ef-489d-8172-5cb0aa4d4a4d" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_f3b281b5-1ce6-40ec-899a-5531832501e8" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/BenefitPlansDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#BenefitPlansDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/BenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfDefinedContributionPlansDisclosuresTable_b93bfcdc-688e-4728-8a9c-4b01bb6d4a20" xlink:href="fcfs-20251231.xsd#fcfs_ScheduleOfDefinedContributionPlansDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_fcfs_ScheduleOfDefinedContributionPlansDisclosuresTable_b93bfcdc-688e-4728-8a9c-4b01bb6d4a20" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ce3a8b86-8b3a-4a8e-adec-68d49e041c65" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfDefinedContributionPlansDisclosuresTable_b93bfcdc-688e-4728-8a9c-4b01bb6d4a20" xlink:to="loc_dei_LegalEntityAxis_ce3a8b86-8b3a-4a8e-adec-68d49e041c65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ce3a8b86-8b3a-4a8e-adec-68d49e041c65_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ce3a8b86-8b3a-4a8e-adec-68d49e041c65" xlink:to="loc_dei_EntityDomain_ce3a8b86-8b3a-4a8e-adec-68d49e041c65_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_3a94cd32-6d95-4ea9-84d0-96a4379a81c5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ce3a8b86-8b3a-4a8e-adec-68d49e041c65" xlink:to="loc_dei_EntityDomain_3a94cd32-6d95-4ea9-84d0-96a4379a81c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FirstCashMember_4a6b354c-e8b6-4d46-bc2c-40e386406674" xlink:href="fcfs-20251231.xsd#fcfs_FirstCashMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3a94cd32-6d95-4ea9-84d0-96a4379a81c5" xlink:to="loc_fcfs_FirstCashMember_4a6b354c-e8b6-4d46-bc2c-40e386406674" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_a186be58-61a9-444c-bdbd-c5095a822fae" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfDefinedContributionPlansDisclosuresTable_b93bfcdc-688e-4728-8a9c-4b01bb6d4a20" xlink:to="loc_srt_RangeAxis_a186be58-61a9-444c-bdbd-c5095a822fae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a186be58-61a9-444c-bdbd-c5095a822fae_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_a186be58-61a9-444c-bdbd-c5095a822fae" xlink:to="loc_srt_RangeMember_a186be58-61a9-444c-bdbd-c5095a822fae_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_97edc629-1912-4c80-919f-43cf5609cbaa" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_a186be58-61a9-444c-bdbd-c5095a822fae" xlink:to="loc_srt_RangeMember_97edc629-1912-4c80-919f-43cf5609cbaa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_d2bece28-a85e-491d-a554-f7fbef8b2a20" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_97edc629-1912-4c80-919f-43cf5609cbaa" xlink:to="loc_srt_MinimumMember_d2bece28-a85e-491d-a554-f7fbef8b2a20" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DefinedContributionPlanVestingPeriodUntilParticipation_20262e90-eb25-400f-a137-ccef3ba56486" xlink:href="fcfs-20251231.xsd#fcfs_DefinedContributionPlanVestingPeriodUntilParticipation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_fcfs_DefinedContributionPlanVestingPeriodUntilParticipation_20262e90-eb25-400f-a137-ccef3ba56486" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_df495b26-40bd-4cc8-9304-df344a78a6da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_df495b26-40bd-4cc8-9304-df344a78a6da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_b832f960-9d4a-4bd3-81c6-4474bef9d19a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_b832f960-9d4a-4bd3-81c6-4474bef9d19a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DefinedContributionPlanRateOfEmployerMatchPercent_1b38f782-330a-47d5-8b6c-f1ba4e463d83" xlink:href="fcfs-20251231.xsd#fcfs_DefinedContributionPlanRateOfEmployerMatchPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_fcfs_DefinedContributionPlanRateOfEmployerMatchPercent_1b38f782-330a-47d5-8b6c-f1ba4e463d83" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DefinedContributionPlanCompanyContributionsVestingPeriod_fe9346e1-75b6-443b-997d-b0515c6730c4" xlink:href="fcfs-20251231.xsd#fcfs_DefinedContributionPlanCompanyContributionsVestingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_fcfs_DefinedContributionPlanCompanyContributionsVestingPeriod_fe9346e1-75b6-443b-997d-b0515c6730c4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_9de64f9e-d1de-4887-95a5-acecd53045e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_6bfdb452-f82e-48bd-8a3d-46e1a3f5f9ac" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_9de64f9e-d1de-4887-95a5-acecd53045e7" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/SegmentandGeographicInformationSegmentInformationDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#SegmentandGeographicInformationSegmentInformationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/SegmentandGeographicInformationSegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:href="fcfs-20251231.xsd#fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_bba01372-5a57-40df-aef4-2b1a7b64f747" xlink:href="fcfs-20251231.xsd#fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_bba01372-5a57-40df-aef4-2b1a7b64f747" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_bf1c9f30-ef87-4bcd-a767-20aba50ab008" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_bba01372-5a57-40df-aef4-2b1a7b64f747" xlink:to="loc_srt_StatementGeographicalAxis_bf1c9f30-ef87-4bcd-a767-20aba50ab008" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_bf1c9f30-ef87-4bcd-a767-20aba50ab008_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_bf1c9f30-ef87-4bcd-a767-20aba50ab008" xlink:to="loc_srt_SegmentGeographicalDomain_bf1c9f30-ef87-4bcd-a767-20aba50ab008_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_fd0b6d71-cf79-4446-a60b-cc19acebd0a1" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_bf1c9f30-ef87-4bcd-a767-20aba50ab008" xlink:to="loc_srt_SegmentGeographicalDomain_fd0b6d71-cf79-4446-a60b-cc19acebd0a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_0dcf6ae0-5675-446f-9f66-a5f1c52ca262" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_fd0b6d71-cf79-4446-a60b-cc19acebd0a1" xlink:to="loc_country_US_0dcf6ae0-5675-446f-9f66-a5f1c52ca262" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LatinAmericaMember_78319c37-b584-4938-aec7-6428760cd893" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_fd0b6d71-cf79-4446-a60b-cc19acebd0a1" xlink:to="loc_srt_LatinAmericaMember_78319c37-b584-4938-aec7-6428760cd893" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_09d41f01-4b52-4a50-b1a8-f46611729508" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_bba01372-5a57-40df-aef4-2b1a7b64f747" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_09d41f01-4b52-4a50-b1a8-f46611729508" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_09d41f01-4b52-4a50-b1a8-f46611729508_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_09d41f01-4b52-4a50-b1a8-f46611729508" xlink:to="loc_us-gaap_SegmentDomain_09d41f01-4b52-4a50-b1a8-f46611729508_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_09d41f01-4b52-4a50-b1a8-f46611729508" xlink:to="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_USPawnSegmentMember_476718d7-e063-4b78-aa5f-4dbbf5789ccf" xlink:href="fcfs-20251231.xsd#fcfs_USPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:to="loc_fcfs_USPawnSegmentMember_476718d7-e063-4b78-aa5f-4dbbf5789ccf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LatinAmericaPawnSegmentMember_682c04a2-7d30-4dec-a041-93d6289f60ff" xlink:href="fcfs-20251231.xsd#fcfs_LatinAmericaPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:to="loc_fcfs_LatinAmericaPawnSegmentMember_682c04a2-7d30-4dec-a041-93d6289f60ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RetailPOSPaymentSolutionsMember_81f0119f-06f7-4125-8924-426585d067b1" xlink:href="fcfs-20251231.xsd#fcfs_RetailPOSPaymentSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:to="loc_fcfs_RetailPOSPaymentSolutionsMember_81f0119f-06f7-4125-8924-426585d067b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.PawnSegmentMember_019c0561-6eb6-7028-8d54-b8307022132f" xlink:href="fcfs-20251231.xsd#fcfs_U.K.PawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0955c878-c3d3-4bf4-9361-b228a3fc0637" xlink:to="loc_fcfs_U.K.PawnSegmentMember_019c0561-6eb6-7028-8d54-b8307022132f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_0cf3c12e-34e5-445c-a382-b62f10102727" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_bba01372-5a57-40df-aef4-2b1a7b64f747" xlink:to="loc_srt_ConsolidationItemsAxis_0cf3c12e-34e5-445c-a382-b62f10102727" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_0cf3c12e-34e5-445c-a382-b62f10102727_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_0cf3c12e-34e5-445c-a382-b62f10102727" xlink:to="loc_srt_ConsolidationItemsDomain_0cf3c12e-34e5-445c-a382-b62f10102727_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_7a083e71-6682-461c-884c-703831491477" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_0cf3c12e-34e5-445c-a382-b62f10102727" xlink:to="loc_srt_ConsolidationItemsDomain_7a083e71-6682-461c-884c-703831491477" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_1122161f-54bc-4bcd-a915-a90e9d6763aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_7a083e71-6682-461c-884c-703831491477" xlink:to="loc_us-gaap_OperatingSegmentsMember_1122161f-54bc-4bcd-a915-a90e9d6763aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_620dee3a-288d-4cac-87c9-a484200d6462" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_7a083e71-6682-461c-884c-703831491477" xlink:to="loc_us-gaap_CorporateNonSegmentMember_620dee3a-288d-4cac-87c9-a484200d6462" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_58542bf4-0d5d-4610-ad3a-0dbf2e557c2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_NumberOfReportableSegments_58542bf4-0d5d-4610-ad3a-0dbf2e557c2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a4208f4f-3cc0-4a79-9072-ab6a306c8d48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_a4208f4f-3cc0-4a79-9072-ab6a306c8d48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnLoanFees_f0e0f132-fcae-4fc4-9a49-875da2333742" xlink:href="fcfs-20251231.xsd#fcfs_PawnLoanFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_fcfs_PawnLoanFees_f0e0f132-fcae-4fc4-9a49-875da2333742" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseIncome_e92fe177-520b-4b34-b376-2caa67721d1e" xlink:href="fcfs-20251231.xsd#fcfs_LeasedMerchandiseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_fcfs_LeasedMerchandiseIncome_e92fe177-520b-4b34-b376-2caa67721d1e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_976029e2-946e-47a8-9f0d-bfc60594b8ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_976029e2-946e-47a8-9f0d-bfc60594b8ea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_WholesaleScrapJewelryRevenue_e4257f56-97e4-4814-a179-7490dcc96020" xlink:href="fcfs-20251231.xsd#fcfs_WholesaleScrapJewelryRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_fcfs_WholesaleScrapJewelryRevenue_e4257f56-97e4-4814-a179-7490dcc96020" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_019c2a13-2f61-7ab5-b44a-bb05003b15ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_019c2a13-2f61-7ab5-b44a-bb05003b15ca" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_9a123e0a-0618-44c5-b601-9ef8169df861" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_9d34cee7-f4c6-4f54-8206-4761caa009cb" xlink:to="loc_us-gaap_Revenues_9a123e0a-0618-44c5-b601-9ef8169df861" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_139091ac-e4de-4a3a-ba1e-3f9cd62da1fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_139091ac-e4de-4a3a-ba1e-3f9cd62da1fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DepreciationOfLeasedMerchandise_d0b1e3bf-6b3d-4540-82dd-e7e52840c684" xlink:href="fcfs-20251231.xsd#fcfs_DepreciationOfLeasedMerchandise"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_fcfs_DepreciationOfLeasedMerchandise_d0b1e3bf-6b3d-4540-82dd-e7e52840c684" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal_42a10f6d-3bf6-4696-a33e-36b04cb5637e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal_42a10f6d-3bf6-4696-a33e-36b04cb5637e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_5572448c-0f30-43d4-b800-7c76ac573fb4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_5572448c-0f30-43d4-b800-7c76ac573fb4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_CostOfWholesaleScrapJewelrySold_57c2d04a-4a0e-459d-92c7-6c1e52335a28" xlink:href="fcfs-20251231.xsd#fcfs_CostOfWholesaleScrapJewelrySold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_fcfs_CostOfWholesaleScrapJewelrySold_57c2d04a-4a0e-459d-92c7-6c1e52335a28" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_019c2a13-2f61-7243-903f-cb24ba1a5d47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_019c2a13-2f61-7243-903f-cb24ba1a5d47" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_8aed77c1-2959-4cad-95ba-831342a402d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_ba11ad1d-bfbd-4700-8a3c-05f3b96c5543" xlink:to="loc_us-gaap_CostOfRevenue_8aed77c1-2959-4cad-95ba-831342a402d8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_0cbfcc52-deac-47a0-b1f5-585afe3d5408" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_GrossProfit_0cbfcc52-deac-47a0-b1f5-585afe3d5408" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpenses_6f5b78e1-f23e-4f80-8267-c94a39c574f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingCostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_OperatingCostsAndExpenses_6f5b78e1-f23e-4f80-8267-c94a39c574f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_19caacaa-8955-43f7-9611-7c819104d033" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_19caacaa-8955-43f7-9611-7c819104d033" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_55ac9812-25d6-41c3-b5fd-50daa8f18340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_55ac9812-25d6-41c3-b5fd-50daa8f18340" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_4061338c-8154-41de-9a9a-fc0ea0330558" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_InterestExpenseOperating_4061338c-8154-41de-9a9a-fc0ea0330558" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_2469463a-260a-49b4-9629-bed64308bf59" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_InvestmentIncomeInterest_2469463a-260a-49b4-9629-bed64308bf59" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_2750c711-e99b-41c5-9130-498e9240ac9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_2750c711-e99b-41c5-9130-498e9240ac9b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts_4fec82b1-9679-4cd5-8bfe-d89b880236a6" xlink:href="fcfs-20251231.xsd#fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts_4fec82b1-9679-4cd5-8bfe-d89b880236a6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_c99b15e9-ff94-4cd9-aa8d-5b001ff1da92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_c99b15e9-ff94-4cd9-aa8d-5b001ff1da92" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_b0eeb863-0099-49ec-98c4-a88666f14c3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_d9595b7b-94e9-4a19-b904-dd6f0172bfb9" xlink:to="loc_us-gaap_OperatingExpenses_b0eeb863-0099-49ec-98c4-a88666f14c3b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c183016d-33e3-4766-a87a-8d82d22048ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c183016d-33e3-4766-a87a-8d82d22048ea" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LoansReceivablePawnLoans_1e269f91-945e-4f3d-a5be-8c8d4c480043" xlink:href="fcfs-20251231.xsd#fcfs_LoansReceivablePawnLoans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_fcfs_LoansReceivablePawnLoans_1e269f91-945e-4f3d-a5be-8c8d4c480043" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_9888aaf3-ffc6-4de0-8b9b-83be0b9dfd1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_9888aaf3-ffc6-4de0-8b9b-83be0b9dfd1e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_9ba7ef5e-5a94-443a-bde1-6d5d44f93884" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_InventoryNet_9ba7ef5e-5a94-443a-bde1-6d5d44f93884" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseNet_a9a96710-137e-4fbb-b611-aa61df375c24" xlink:href="fcfs-20251231.xsd#fcfs_LeasedMerchandiseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_fcfs_LeasedMerchandiseNet_a9a96710-137e-4fbb-b611-aa61df375c24" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_1cd189ed-836f-4998-875a-9fc223a81905" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_Goodwill_1cd189ed-836f-4998-875a-9fc223a81905" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_cc8dbc9e-6fdc-4f89-9a07-e225d948d605" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_1331b982-031f-4fcf-8714-2c2131622f5e" xlink:to="loc_us-gaap_Assets_cc8dbc9e-6fdc-4f89-9a07-e225d948d605" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/SegmentandGeographicInformationGeographicInformationDetails" xlink:type="simple" xlink:href="fcfs-20251231.xsd#SegmentandGeographicInformationGeographicInformationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/SegmentandGeographicInformationGeographicInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_90cd29fa-b02b-4f72-b176-7007b4468baf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7fe2f3b8-8855-49e5-a791-fbdfb7455399" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_90cd29fa-b02b-4f72-b176-7007b4468baf" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7fe2f3b8-8855-49e5-a791-fbdfb7455399" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_6011f9b0-f9f9-4a4f-b6b7-820345d4917c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7fe2f3b8-8855-49e5-a791-fbdfb7455399" xlink:to="loc_srt_StatementGeographicalAxis_6011f9b0-f9f9-4a4f-b6b7-820345d4917c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_6011f9b0-f9f9-4a4f-b6b7-820345d4917c_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_6011f9b0-f9f9-4a4f-b6b7-820345d4917c" xlink:to="loc_srt_SegmentGeographicalDomain_6011f9b0-f9f9-4a4f-b6b7-820345d4917c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_6011f9b0-f9f9-4a4f-b6b7-820345d4917c" xlink:to="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_989d9c86-9aed-4729-a0c4-c59bd63fc7d1" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:to="loc_country_US_989d9c86-9aed-4729-a0c4-c59bd63fc7d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_280dfc2c-b3d4-4b17-87ca-b0e38f47d543" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:to="loc_country_MX_280dfc2c-b3d4-4b17-87ca-b0e38f47d543" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OtherLatinAmericaMember_4c95c369-3ef3-457e-b487-aa4842dbac37" xlink:href="fcfs-20251231.xsd#fcfs_OtherLatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:to="loc_fcfs_OtherLatinAmericaMember_4c95c369-3ef3-457e-b487-aa4842dbac37" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019c0563-ab1a-7b93-a98e-c4fe8b8ca60a" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_2ed82bc3-6d15-4a42-ab7a-8d560dcaebe8" xlink:to="loc_country_GB_019c0563-ab1a-7b93-a98e-c4fe8b8ca60a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_f3892860-8386-49b3-9489-fe3cbef6f5d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_90cd29fa-b02b-4f72-b176-7007b4468baf" xlink:to="loc_us-gaap_Revenues_f3892860-8386-49b3-9489-fe3cbef6f5d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncurrentAssets_bb4ec30b-2b7b-44e2-8620-d20d65635f25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_90cd29fa-b02b-4f72-b176-7007b4468baf" xlink:to="loc_us-gaap_NoncurrentAssets_bb4ec30b-2b7b-44e2-8620-d20d65635f25" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_AccountsReceivableNet" xlink:type="arc" order="101"/>
  </link:definitionLink>
</link:linkbase>
