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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019cba0a-984b-7e02-8a72-2234df550e15,g:94538c67-f6c3-4281-84ca-21f4b4afafa3-->
<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://www.liveoakbank.com/role/CoverPage" xlink:type="simple" xlink:href="lob-20260331.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019cba0a-9c03-792b-b7c8-2181ee67400a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentInformationTable_019cba0a-9c03-792b-b7c8-2181ee67400a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7f74-9e15-a7ee03e84134" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019cba0a-9c03-792b-b7c8-2181ee67400a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7f74-9e15-a7ee03e84134" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7f74-9e15-a7ee03e84134_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7f74-9e15-a7ee03e84134" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7f74-9e15-a7ee03e84134_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7390-90e1-182edc827bc7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7f74-9e15-a7ee03e84134" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7390-90e1-182edc827bc7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019cba0a-9c03-7c64-b259-b33c84dabe66" 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_ClassOfStockDomain_019cba0a-9c03-7390-90e1-182edc827bc7" xlink:to="loc_us-gaap_CommonStockMember_019cba0a-9c03-7c64-b259-b33c84dabe66" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-7078-8210-43c802057065" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7390-90e1-182edc827bc7" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-7078-8210-43c802057065" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019cba0a-9c03-7667-a1a8-bd804e376ffe" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentType_019cba0a-9c03-7667-a1a8-bd804e376ffe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019cba0a-9c03-78f4-8b5e-218a3f9c1680" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentQuarterlyReport_019cba0a-9c03-78f4-8b5e-218a3f9c1680" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019cba0a-9c03-779e-b6af-e5d4d468bf17" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentPeriodEndDate_019cba0a-9c03-779e-b6af-e5d4d468bf17" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019cba0a-9c03-7e4b-a10c-faf2c43ad099" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentTransitionReport_019cba0a-9c03-7e4b-a10c-faf2c43ad099" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019cba0a-9c03-77e9-8271-f278037e12bf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityFileNumber_019cba0a-9c03-77e9-8271-f278037e12bf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019cba0a-9c03-77b8-bacc-9b02b58769bf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityRegistrantName_019cba0a-9c03-77b8-bacc-9b02b58769bf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019cba0a-9c03-71e3-a651-86999a1a66b5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019cba0a-9c03-71e3-a651-86999a1a66b5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019cba0a-9c03-75e0-839f-50a10f2a651e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityTaxIdentificationNumber_019cba0a-9c03-75e0-839f-50a10f2a651e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019cba0a-9c03-70b4-b533-460c70ee7524" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityAddressAddressLine1_019cba0a-9c03-70b4-b533-460c70ee7524" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019cba0a-9c03-7d90-9745-b2a24c0bacff" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityAddressCityOrTown_019cba0a-9c03-7d90-9745-b2a24c0bacff" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019cba0a-9c03-702b-91d7-3ce350c3005a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityAddressStateOrProvince_019cba0a-9c03-702b-91d7-3ce350c3005a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019cba0a-9c03-7f9a-b87d-339fbdb3c7bc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityAddressPostalZipCode_019cba0a-9c03-7f9a-b87d-339fbdb3c7bc" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019cba0a-9c03-758d-a84c-ea06fbcda45f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_CityAreaCode_019cba0a-9c03-758d-a84c-ea06fbcda45f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019cba0a-9c03-79cb-a8da-14fc9a6f737f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_LocalPhoneNumber_019cba0a-9c03-79cb-a8da-14fc9a6f737f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019cba0a-9c03-7e34-ab57-a106beffbbb2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_Security12bTitle_019cba0a-9c03-7e34-ab57-a106beffbbb2" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019cba0a-9c03-7cbb-b16d-0d94a0328864" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_TradingSymbol_019cba0a-9c03-7cbb-b16d-0d94a0328864" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019cba0a-9c03-76cd-bf0d-0254aa3b9825" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_SecurityExchangeName_019cba0a-9c03-76cd-bf0d-0254aa3b9825" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019cba0a-9c03-7347-b6ad-c27a7d2c8ec8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityCurrentReportingStatus_019cba0a-9c03-7347-b6ad-c27a7d2c8ec8" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019cba0a-9c03-7564-a54c-8db2f9a6c8d7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityInteractiveDataCurrent_019cba0a-9c03-7564-a54c-8db2f9a6c8d7" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019cba0a-9c03-72b9-a2b1-9df26fdcccaf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityFilerCategory_019cba0a-9c03-72b9-a2b1-9df26fdcccaf" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019cba0a-9c03-7e27-9fb4-06051b1e420d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntitySmallBusiness_019cba0a-9c03-7e27-9fb4-06051b1e420d" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019cba0a-9c03-7f87-a644-efcb6a0b4a59" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityEmergingGrowthCompany_019cba0a-9c03-7f87-a644-efcb6a0b4a59" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019cba0a-9c03-75cd-bfa8-987610d15151" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityShellCompany_019cba0a-9c03-75cd-bfa8-987610d15151" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019cba0a-9c03-7f9f-a658-f3e6546ebdb5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019cba0a-9c03-7f9f-a658-f3e6546ebdb5" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019cba0a-9c03-7204-ad82-026d7445fc86" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_EntityCentralIndexKey_019cba0a-9c03-7204-ad82-026d7445fc86" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019cba0a-9c03-7dcd-a1f2-bf3275291b28" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_CurrentFiscalYearEndDate_019cba0a-9c03-7dcd-a1f2-bf3275291b28" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019cba0a-9c03-796e-9f56-c6fcfa2a777d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentFiscalYearFocus_019cba0a-9c03-796e-9f56-c6fcfa2a777d" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019cba0a-9c03-752e-8976-729b8b5c04aa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019cba0a-9c03-752e-8976-729b8b5c04aa" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019cba0a-9c03-727f-a584-25a45d3f69be" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019cba0a-9c03-76ab-8fe7-58ff861e424c" xlink:to="loc_dei_AmendmentFlag_019cba0a-9c03-727f-a584-25a45d3f69be" xlink:type="arc" order="28"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="lob-20260331.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019cba0a-9c03-7ac4-b90b-8b2a33c05347" 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_019cba0a-9c03-7073-a831-988f227bfa85" 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_019cba0a-9c03-7ac4-b90b-8b2a33c05347" xlink:to="loc_us-gaap_StatementTable_019cba0a-9c03-7073-a831-988f227bfa85" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7c91-9714-ad12aa3c0a81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019cba0a-9c03-7073-a831-988f227bfa85" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7c91-9714-ad12aa3c0a81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7c91-9714-ad12aa3c0a81_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7c91-9714-ad12aa3c0a81" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7c91-9714-ad12aa3c0a81_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-78b5-af1f-86621b8d0810" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7c91-9714-ad12aa3c0a81" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-78b5-af1f-86621b8d0810" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-726f-9750-5c2743adcbcb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-78b5-af1f-86621b8d0810" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-726f-9750-5c2743adcbcb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7271-a969-b55a3e17e61a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-78b5-af1f-86621b8d0810" xlink:to="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7271-a969-b55a3e17e61a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7ac4-b90b-8b2a33c05347" xlink:to="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndDueFromBanks_019cba0a-9c03-757e-bad0-269e420a0482" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndDueFromBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_CashAndDueFromBanks_019cba0a-9c03-757e-bad0-269e420a0482" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositAtCarryingValue_019cba0a-9c03-7755-b4e7-714fbe527b90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_CertificatesOfDepositAtCarryingValue_019cba0a-9c03-7755-b4e7-714fbe527b90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019cba0a-9c03-7225-8b28-bf6aeeafa221" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019cba0a-9c03-7225-8b28-bf6aeeafa221" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_019cba0a-9c03-7841-9678-08332b0c38c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_019cba0a-9c03-7841-9678-08332b0c38c5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019cba0a-9c03-74d2-9211-827150e6a75a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019cba0a-9c03-74d2-9211-827150e6a75a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019cba0a-9c03-795e-9c4a-acec8e465df3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019cba0a-9c03-795e-9c4a-acec8e465df3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019cba0a-9c03-76eb-a14e-de4276c36279" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019cba0a-9c03-76eb-a14e-de4276c36279" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019cba0a-9c03-7eab-a75e-1f6891cf9239" 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_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019cba0a-9c03-7eab-a75e-1f6891cf9239" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeclosedAssets_019cba0a-9c03-7673-a746-a7cbcdc2b9f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeclosedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_ForeclosedAssets_019cba0a-9c03-7673-a746-a7cbcdc2b9f6" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAsset_019cba0a-9c03-711b-aea1-ea2c6d3933be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_ServicingAsset_019cba0a-9c03-711b-aea1-ea2c6d3933be" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019cba0a-9c03-74ea-9cb8-abd113b80715" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_OtherAssets_019cba0a-9c03-74ea-9cb8-abd113b80715" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019cba0a-9c03-7081-88db-d676d8967bfb" 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_us-gaap_AssetsAbstract_019cba0a-9c03-7b78-9446-11852f2c6346" xlink:to="loc_us-gaap_Assets_019cba0a-9c03-7081-88db-d676d8967bfb" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019cba0a-9c03-7f3f-ac80-a02cd11152e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7ac4-b90b-8b2a33c05347" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019cba0a-9c03-7f3f-ac80-a02cd11152e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019cba0a-9c03-7f3f-ac80-a02cd11152e1" xlink:to="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAbstract_019cba0a-9c03-74a3-944f-259d6d60ef4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:to="loc_us-gaap_DepositsAbstract_019cba0a-9c03-74a3-944f-259d6d60ef4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestBearingDepositLiabilities_019cba0a-9c03-7036-8692-a3e8fa5a0203" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestBearingDepositLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepositsAbstract_019cba0a-9c03-74a3-944f-259d6d60ef4c" xlink:to="loc_us-gaap_NoninterestBearingDepositLiabilities_019cba0a-9c03-7036-8692-a3e8fa5a0203" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestBearingDepositLiabilities_019cba0a-9c03-7918-b62a-3bcf44b9ddc2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestBearingDepositLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepositsAbstract_019cba0a-9c03-74a3-944f-259d6d60ef4c" xlink:to="loc_us-gaap_InterestBearingDepositLiabilities_019cba0a-9c03-7918-b62a-3bcf44b9ddc2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Deposits_019cba0a-9c03-79d7-bbf6-ce5ef588b9a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Deposits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepositsAbstract_019cba0a-9c03-74a3-944f-259d6d60ef4c" xlink:to="loc_us-gaap_Deposits_019cba0a-9c03-79d7-bbf6-ce5ef588b9a7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_019cba0a-9c03-72d6-94f4-20750e08863c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:to="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_019cba0a-9c03-72d6-94f4-20750e08863c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019cba0a-9c03-723b-b423-ce137da7aa03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:to="loc_us-gaap_OtherLiabilities_019cba0a-9c03-723b-b423-ce137da7aa03" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019cba0a-9c03-7ddc-9b7d-17882e7abb84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019cba0a-9c03-7b91-b2c7-6eb0b6d1ce0a" xlink:to="loc_us-gaap_Liabilities_019cba0a-9c03-7ddc-9b7d-17882e7abb84" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019cba0a-9c03-7f3f-ac80-a02cd11152e1" xlink:to="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019cba0a-9c03-7e2d-876b-fe4a1132df6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_PreferredStockValue_019cba0a-9c03-7e2d-876b-fe4a1132df6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019cba0a-9c03-7507-b41a-38a5db0ade0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_CommonStockValue_019cba0a-9c03-7507-b41a-38a5db0ade0e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019cba0a-9c03-755b-85f7-ab684337591c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019cba0a-9c03-755b-85f7-ab684337591c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019cba0a-9c03-7f59-952f-95c962671d81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019cba0a-9c03-7f59-952f-95c962671d81" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019cba0a-9c03-74c1-8366-c23714bb9add" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_StockholdersEquity_019cba0a-9c03-74c1-8366-c23714bb9add" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019cba0a-9c03-79cc-8f7f-73455e1f890c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_MinorityInterest_019cba0a-9c03-79cc-8f7f-73455e1f890c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019cba0a-9c03-7651-9b36-44381119083a" 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_StockholdersEquityAbstract_019cba0a-9c03-7092-be9d-e08c40cd7b62" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019cba0a-9c03-7651-9b36-44381119083a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019cba0a-9c03-7915-b91b-38b5777e114d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019cba0a-9c03-7f3f-ac80-a02cd11152e1" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019cba0a-9c03-7915-b91b-38b5777e114d" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" xlink:href="lob-20260331.xsd#CondensedConsolidatedBalanceSheetsParenthetical"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" 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_019cba0a-9c03-747c-8544-9df379d54eaf" 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_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_StatementTable_019cba0a-9c03-747c-8544-9df379d54eaf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019cba0a-9c03-7605-91aa-14880af77dc8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019cba0a-9c03-747c-8544-9df379d54eaf" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019cba0a-9c03-7605-91aa-14880af77dc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019cba0a-9c03-7605-91aa-14880af77dc8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019cba0a-9c03-7605-91aa-14880af77dc8" xlink:to="loc_us-gaap_ReceivableTypeDomain_019cba0a-9c03-7605-91aa-14880af77dc8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019cba0a-9c03-7681-97e3-82f103249281" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019cba0a-9c03-7605-91aa-14880af77dc8" xlink:to="loc_us-gaap_ReceivableTypeDomain_019cba0a-9c03-7681-97e3-82f103249281" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ReceivablesUnderTheFairValueOptionMember_019cba0a-9c03-79a0-8ac0-64da86714331" xlink:href="lob-20260331.xsd#lob_ReceivablesUnderTheFairValueOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019cba0a-9c03-7681-97e3-82f103249281" xlink:to="loc_lob_ReceivablesUnderTheFairValueOptionMember_019cba0a-9c03-79a0-8ac0-64da86714331" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7d47-9016-2f429135079a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019cba0a-9c03-747c-8544-9df379d54eaf" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7d47-9016-2f429135079a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7d47-9016-2f429135079a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7d47-9016-2f429135079a" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7d47-9016-2f429135079a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-747d-b544-186113dbe40e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-7d47-9016-2f429135079a" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-747d-b544-186113dbe40e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-7752-b991-ec9c5c130f29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-747d-b544-186113dbe40e" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-7752-b991-ec9c5c130f29" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7586-a5b8-844a7ffd8047" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-747d-b544-186113dbe40e" xlink:to="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7586-a5b8-844a7ffd8047" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019cba0a-9c03-74b6-9c43-71536755e762" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019cba0a-9c03-74b6-9c43-71536755e762" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetAtFairValueAmount_019cba0a-9c03-73ce-9521-10a3d28d32a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetAtFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_ServicingAssetAtFairValueAmount_019cba0a-9c03-73ce-9521-10a3d28d32a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockNoParValue_019cba0a-9c03-7f50-b088-8df42de3c7c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockNoParValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_PreferredStockNoParValue_019cba0a-9c03-7f50-b088-8df42de3c7c9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019cba0a-9c03-737d-8ba8-9fd772d62c1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019cba0a-9c03-737d-8ba8-9fd772d62c1c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_019cba0a-9c03-76ec-868b-e5f1d72e2f13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_PreferredStockSharesIssued_019cba0a-9c03-76ec-868b-e5f1d72e2f13" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019cba0a-9c03-7b20-8849-993fb6790f92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019cba0a-9c03-7b20-8849-993fb6790f92" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockNoParValue_019cba0a-9c03-7824-93dd-bf2a5f739b9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockNoParValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_CommonStockNoParValue_019cba0a-9c03-7824-93dd-bf2a5f739b9b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019cba0a-9c03-7131-a3e7-88dd63d1f966" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019cba0a-9c03-7131-a3e7-88dd63d1f966" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019cba0a-9c03-7ffc-af07-fc024b670cb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_CommonStockSharesIssued_019cba0a-9c03-7ffc-af07-fc024b670cb8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019cba0a-9c03-7bd8-bf9d-218f68e1e2a9" 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_StatementLineItems_019cba0a-9c03-7039-a667-6b220c873e51" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019cba0a-9c03-7bd8-bf9d-218f68e1e2a9" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CondensedConsolidatedStatementsofChangesinShareholdersEquity" xlink:type="simple" xlink:href="lob-20260331.xsd#CondensedConsolidatedStatementsofChangesinShareholdersEquity"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CondensedConsolidatedStatementsofChangesinShareholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019cba0a-9c03-7186-be18-c7d50fc72e08" 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_019cba0a-9c03-7d58-bac3-f91f908585e4" 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_019cba0a-9c03-7186-be18-c7d50fc72e08" xlink:to="loc_us-gaap_StatementTable_019cba0a-9c03-7d58-bac3-f91f908585e4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019cba0a-9c03-7e8b-9035-eb3cc05c698f" 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_019cba0a-9c03-7d58-bac3-f91f908585e4" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019cba0a-9c03-7e8b-9035-eb3cc05c698f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-7e8b-9035-eb3cc05c698f_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_019cba0a-9c03-7e8b-9035-eb3cc05c698f" xlink:to="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-7e8b-9035-eb3cc05c698f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-71f0-98e2-b8892722cab7" 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_019cba0a-9c03-7e8b-9035-eb3cc05c698f" xlink:to="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_019cba0a-9c03-7853-9b2b-84605462d65f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:to="loc_us-gaap_PreferredStockMember_019cba0a-9c03-7853-9b2b-84605462d65f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019cba0a-9c03-7a57-8505-93a512e01ca2" 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_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:to="loc_us-gaap_CommonStockMember_019cba0a-9c03-7a57-8505-93a512e01ca2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019cba0a-9c03-7669-a799-9928a47c9fc8" 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_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:to="loc_us-gaap_RetainedEarningsMember_019cba0a-9c03-7669-a799-9928a47c9fc8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019cba0a-9c03-7397-9f3b-526d048f93c1" 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_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019cba0a-9c03-7397-9f3b-526d048f93c1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019cba0a-9c03-75d9-9bf2-eac7ababab0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019cba0a-9c03-71f0-98e2-b8892722cab7" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019cba0a-9c03-75d9-9bf2-eac7ababab0c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-79b6-96ac-cc8b6246e6d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019cba0a-9c03-7d58-bac3-f91f908585e4" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-79b6-96ac-cc8b6246e6d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-79b6-96ac-cc8b6246e6d8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-79b6-96ac-cc8b6246e6d8" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-79b6-96ac-cc8b6246e6d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7992-9df4-750cb48c89a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019cba0a-9c03-79b6-96ac-cc8b6246e6d8" xlink:to="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7992-9df4-750cb48c89a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-773d-b544-80bd6cf6d541" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7992-9df4-750cb48c89a2" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019cba0a-9c03-773d-b544-80bd6cf6d541" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7315-9daf-e390b309bf8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7992-9df4-750cb48c89a2" xlink:to="loc_us-gaap_CommonClassAMember_019cba0a-9c03-7315-9daf-e390b309bf8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019cba0a-9c03-7783-b27e-e17b20a7d7a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019cba0a-9c03-7992-9df4-750cb48c89a2" xlink:to="loc_us-gaap_CommonClassBMember_019cba0a-9c03-7783-b27e-e17b20a7d7a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" 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_019cba0a-9c03-7186-be18-c7d50fc72e08" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019cba0a-9c03-7611-b252-0b3e3cb31231" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019cba0a-9c03-7611-b252-0b3e3cb31231" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019cba0a-9c03-7645-9b97-e727545676aa" 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_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019cba0a-9c03-7645-9b97-e727545676aa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019cba0a-9c03-792a-8d30-bab330d80fd0" 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_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019cba0a-9c03-792a-8d30-bab330d80fd0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019cba0a-9c03-7fe6-aac4-7b84da3b5b41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_ProfitLoss_019cba0a-9c03-7fe6-aac4-7b84da3b5b41" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019cba0a-9c03-7e34-8bef-60aae4e77148" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019cba0a-9c03-7e34-8bef-60aae4e77148" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019cba0a-9c03-753c-be20-70565052bf70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019cba0a-9c03-753c-be20-70565052bf70" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019cba0a-9c03-794e-a4d6-fc1d33182327" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019cba0a-9c03-794e-a4d6-fc1d33182327" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019cba0a-9c03-7142-84ef-7a1cad980ce9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_019cba0a-9c03-7142-84ef-7a1cad980ce9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019cba0a-9c03-764e-9f16-7009da1e4780" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_019cba0a-9c03-764e-9f16-7009da1e4780" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019cba0a-9c03-792a-8431-d08601677f28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019cba0a-9c03-792a-8431-d08601677f28" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_019cba0a-9c03-79a2-a4e5-27cd0bd25452" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_019cba0a-9c03-79a2-a4e5-27cd0bd25452" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_019cba0a-9c03-7547-a2e0-5bb707e82ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_019cba0a-9c03-7547-a2e0-5bb707e82ba8" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPreferredStockCash_019cba0a-9c03-7e32-983e-0f33e66cbfe3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPreferredStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_DividendsPreferredStockCash_019cba0a-9c03-7e32-983e-0f33e66cbfe3" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalOther_019cba0a-9c03-7523-bb6c-ee1df91d1a55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalOther_019cba0a-9c03-7523-bb6c-ee1df91d1a55" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019cba0a-9c03-7cc7-ab48-2a0d35b44117" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019cba0a-9c03-7ba9-9b5c-800b58c2ce07" xlink:to="loc_us-gaap_DividendsCommonStockCash_019cba0a-9c03-7cc7-ab48-2a0d35b44117" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019cba0a-9c03-7d6f-b365-3d5612c9e692" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019cba0a-9c03-76e5-b489-38b7597876c9" 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_CommonStockSharesOutstanding_019cba0a-9c03-7a79-b6dc-6c2180996e77" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/BasisofPresentationNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#BasisofPresentationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/BasisofPresentationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019cba0a-9c03-7f03-aafe-effc841cd79c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019cba0a-9c03-7f03-aafe-effc841cd79c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019d44b7-4a30-7a88-aec9-1a82810aeea9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019cba0a-9c03-7f03-aafe-effc841cd79c" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019d44b7-4a30-7a88-aec9-1a82810aeea9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019d44b7-4a30-7a88-aec9-1a82810aeea9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019d44b7-4a30-7a88-aec9-1a82810aeea9" xlink:to="loc_us-gaap_ClassOfStockDomain_019d44b7-4a30-7a88-aec9-1a82810aeea9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019d44b7-4a30-70a1-8813-e38485f9bc61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019d44b7-4a30-7a88-aec9-1a82810aeea9" xlink:to="loc_us-gaap_ClassOfStockDomain_019d44b7-4a30-70a1-8813-e38485f9bc61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019d44b7-4a30-7ab3-a65f-66d01fb453b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019d44b7-4a30-70a1-8813-e38485f9bc61" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019d44b7-4a30-7ab3-a65f-66d01fb453b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019d44b7-4a30-7331-b945-68e68dab1f11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019cba0a-9c03-7f03-aafe-effc841cd79c" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019d44b7-4a30-7331-b945-68e68dab1f11" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019d44b7-4a30-7331-b945-68e68dab1f11_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019d44b7-4a30-7331-b945-68e68dab1f11" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019d44b7-4a30-7331-b945-68e68dab1f11_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019d44b7-4a30-77c0-85e3-8c8bdd6dd9c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019d44b7-4a30-7331-b945-68e68dab1f11" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019d44b7-4a30-77c0-85e3-8c8bdd6dd9c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_PublicOfferingMember_019d44b7-4a30-7733-9678-52e46bbc87d0" xlink:href="lob-20260331.xsd#lob_PublicOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019d44b7-4a30-77c0-85e3-8c8bdd6dd9c5" xlink:to="loc_lob_PublicOfferingMember_019d44b7-4a30-7733-9678-52e46bbc87d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019d44b7-1a83-7b36-ad27-1d00867d0736" 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_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_NumberOfReportableSegments_019d44b7-1a83-7b36-ad27-1d00867d0736" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019d44b7-1a83-764d-95f8-2db6d4781686" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019d44b7-1a83-764d-95f8-2db6d4781686" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019d44b7-4a30-78cb-9977-4e23d3666384" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019d44b7-4a30-78cb-9977-4e23d3666384" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockConvertibleConversionRatio_019d44b7-853e-7051-9469-49a01d78aecb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockConvertibleConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockConvertibleConversionRatio_019d44b7-853e-7051-9469-49a01d78aecb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_019d44b7-4a30-7cda-80be-cbfcabd5cf52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendRatePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_019d44b7-4a30-7cda-80be-cbfcabd5cf52" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019d44b7-4a30-7d20-b4f3-10532d794284" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019d44b7-4a30-7d20-b4f3-10532d794284" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreference_019d44b7-4a30-7176-8400-694dd6362dd4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockLiquidationPreference_019d44b7-4a30-7176-8400-694dd6362dd4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_019d44b7-4a30-75c4-8e90-71bfde2540de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesIssuedPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_019d44b7-4a30-75c4-8e90-71bfde2540de" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019d44b7-4a30-7f5a-bba1-2cec6c9ab56b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019d44b7-4a30-7f5a-bba1-2cec6c9ab56b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019d44b7-4a30-7a24-a31c-c8ef8993454b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019d44b7-4a30-7a24-a31c-c8ef8993454b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockRedemptionPricePerShare_019d44b7-4a30-7dd2-be1a-0907612cde49" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockRedemptionPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockRedemptionPricePerShare_019d44b7-4a30-7dd2-be1a-0907612cde49" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareDeclared_019d44b7-4a30-761a-a7f9-008f349d8cdd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d44b7-1a83-70d4-b9fe-7fee8c7ad9f3" xlink:to="loc_us-gaap_PreferredStockDividendsPerShareDeclared_019d44b7-4a30-761a-a7f9-008f349d8cdd" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/BasisofPresentationRevisionOfPreviouslyReportedFinancialStatementsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#BasisofPresentationRevisionOfPreviouslyReportedFinancialStatementsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/BasisofPresentationRevisionOfPreviouslyReportedFinancialStatementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_019d44b2-0c97-7812-a860-fe10921b47f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_019d44b2-0c97-7b1b-8cea-59c2904c380b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_019d44b2-0c97-7812-a860-fe10921b47f9" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_019d44b2-0c97-7b1b-8cea-59c2904c380b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_019d44b2-0c97-7cd8-9c33-855621237e60" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_019d44b2-0c97-7b1b-8cea-59c2904c380b" xlink:to="loc_srt_RestatementAxis_019d44b2-0c97-7cd8-9c33-855621237e60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_019d44b2-0c97-7cd8-9c33-855621237e60_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_019d44b2-0c97-7cd8-9c33-855621237e60" xlink:to="loc_srt_RestatementDomain_019d44b2-0c97-7cd8-9c33-855621237e60_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_019d44b2-0c97-7f27-afc3-16985eba0d1a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_019d44b2-0c97-7cd8-9c33-855621237e60" xlink:to="loc_srt_RestatementDomain_019d44b2-0c97-7f27-afc3-16985eba0d1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_019d44b2-0c97-744e-abf7-6ab27012757a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_019d44b2-0c97-7f27-afc3-16985eba0d1a" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_019d44b2-0c97-744e-abf7-6ab27012757a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RevisionOfPriorPeriodErrorCorrectionAdjustmentMember_019d44b2-0c97-7309-b1d6-24cb3800785d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RevisionOfPriorPeriodErrorCorrectionAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_019d44b2-0c97-7f27-afc3-16985eba0d1a" xlink:to="loc_srt_RevisionOfPriorPeriodErrorCorrectionAdjustmentMember_019d44b2-0c97-7309-b1d6-24cb3800785d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_019d44b2-0c97-7812-a860-fe10921b47f9" xlink:to="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSalesOfLoansNet_019d44b2-0c97-7862-81ec-b24776538528" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSalesOfLoansNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:to="loc_us-gaap_GainLossOnSalesOfLoansNet_019d44b2-0c97-7862-81ec-b24776538528" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_019d44b2-0c97-78b9-87ae-eb69fbae59b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:to="loc_us-gaap_NoninterestIncome_019d44b2-0c97-78b9-87ae-eb69fbae59b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_019d44b2-0c97-746a-91d1-7d7d6fd8b58e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:to="loc_us-gaap_LaborAndRelatedExpense_019d44b2-0c97-746a-91d1-7d7d6fd8b58e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TravelAndEntertainmentExpense_019d44b2-0c97-72db-b99c-fec26cd99665" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TravelAndEntertainmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:to="loc_us-gaap_TravelAndEntertainmentExpense_019d44b2-0c97-72db-b99c-fec26cd99665" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_019d44b2-0c97-756b-aeb9-06908391a10f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract_019d44b2-0c97-7425-9b8e-edcf960de9d5" xlink:to="loc_us-gaap_NoninterestExpense_019d44b2-0c97-756b-aeb9-06908391a10f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_019d44b2-0c97-7774-8a2c-7b330b4981ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_019d44b2-0c97-7812-a860-fe10921b47f9" xlink:to="loc_us-gaap_StatementOfCashFlowsAbstract_019d44b2-0c97-7774-8a2c-7b330b4981ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSalesOfLoansNet_019d44b2-0c97-7d10-aa94-6ec13759f06f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSalesOfLoansNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019d44b2-0c97-76ab-9cfe-32c263502540" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019d44b2-0c97-7774-8a2c-7b330b4981ed" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019d44b2-0c97-76ab-9cfe-32c263502540" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_019d44b2-0c97-7e32-817b-1721c8cb6874" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019d44b2-0c97-7774-8a2c-7b330b4981ed" xlink:to="loc_us-gaap_PaymentsForProceedsFromLoansAndLeases_019d44b2-0c97-7e32-817b-1721c8cb6874" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019d44b2-0c97-7678-a876-f9427837a29c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019d44b2-0c97-7774-8a2c-7b330b4981ed" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019d44b2-0c97-7678-a876-f9427837a29c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofAmortizedCostEstimatedFairValueandUnrealizedGainsLossesDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofAmortizedCostEstimatedFairValueandUnrealizedGainsLossesDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofAmortizedCostEstimatedFairValueandUnrealizedGainsLossesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7781-83d9-c6b992d248d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7781-83d9-c6b992d248d1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7781-83d9-c6b992d248d1" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-74e0-a4d8-f74a7c714209" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7b3d-adea-8e07a1d6125d" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-74e0-a4d8-f74a7c714209" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7dc9-912e-614013f58b03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-74e0-a4d8-f74a7c714209" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7dc9-912e-614013f58b03" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7282-86e4-1101ba08b49c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageBackedSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-74e0-a4d8-f74a7c714209" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7282-86e4-1101ba08b49c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7997-9be2-56e142dc9112" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-74e0-a4d8-f74a7c714209" xlink:to="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7997-9be2-56e142dc9112" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7610-ae2f-b2aeba7aec4f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7610-ae2f-b2aeba7aec4f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019d1fa0-d9ab-73fd-b02a-ca29532f1610" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019d1fa0-d9ab-73fd-b02a-ca29532f1610" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019d1fa0-d9ab-7bd7-bb57-3f3914b10e88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019d1fa0-d9ab-7bd7-bb57-3f3914b10e88" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-75db-9b15-a667f396d3a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-761c-a6b6-e3dfb2486c14" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-75db-9b15-a667f396d3a6" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7970-8797-c1c56d5ff32e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7970-8797-c1c56d5ff32e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7550-9c60-d0aa54889c84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7970-8797-c1c56d5ff32e" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7550-9c60-d0aa54889c84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7550-9c60-d0aa54889c84_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7550-9c60-d0aa54889c84" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7550-9c60-d0aa54889c84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7550-9c60-d0aa54889c84" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SaleOfAvailableForSaleSecuritiesMember_019d1fa0-d9ab-73d8-a535-64f8b2fe2d02" xlink:href="lob-20260331.xsd#lob_SaleOfAvailableForSaleSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:to="loc_lob_SaleOfAvailableForSaleSecuritiesMember_019d1fa0-d9ab-73d8-a535-64f8b2fe2d02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7397-9a6a-3794695eb8db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageBackedSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7397-9a6a-3794695eb8db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7b26-ba2f-221e46e4189f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7b26-ba2f-221e46e4189f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7abc-a0ef-275026ee325c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7499-8a0e-f7499016949e" xlink:to="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7abc-a0ef-275026ee325c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralAxis_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7970-8797-c1c56d5ff32e" xlink:to="loc_us-gaap_CollateralAxis_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CollateralAxis_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a" xlink:to="loc_us-gaap_CollateralDomain_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_019d1fa0-d9ab-7a97-ae36-3e25d1a19ed7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CollateralAxis_019d1fa0-d9ab-75b9-ace4-b63f6d37e80a" xlink:to="loc_us-gaap_CollateralDomain_019d1fa0-d9ab-7a97-ae36-3e25d1a19ed7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralPledgedMember_019d1fa0-d9ab-70c8-98ef-9224ffedd41d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralPledgedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d1fa0-d9ab-7a97-ae36-3e25d1a19ed7" xlink:to="loc_us-gaap_CollateralPledgedMember_019d1fa0-d9ab-70c8-98ef-9224ffedd41d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_DebtSecuritiesAvailableForSaleNumberOfSecurities_019d1fa0-d9ab-7fc8-87d8-34387c9a4424" xlink:href="lob-20260331.xsd#lob_DebtSecuritiesAvailableForSaleNumberOfSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_lob_DebtSecuritiesAvailableForSaleNumberOfSecurities_019d1fa0-d9ab-7fc8-87d8-34387c9a4424" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_019d1fa0-d9ab-7a95-80c4-bcc90c034449" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_019d1fa0-d9ab-7a95-80c4-bcc90c034449" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss_019d1fac-7c38-7cd0-bac9-2852280be314" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss_019d1fac-7c38-7cd0-bac9-2852280be314" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions_019d1fa0-d9ab-7496-bc67-9ce4f3867e04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions_019d1fa0-d9ab-7496-bc67-9ce4f3867e04" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions_019d1fa0-d9ab-72c9-a198-c76a08f0c71d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions_019d1fa0-d9ab-72c9-a198-c76a08f0c71d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedLoss_019d1fa0-d9ab-7540-ba09-4b62aa6931f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedLoss_019d1fa0-d9ab-7540-ba09-4b62aa6931f1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-7b52-a5ae-5e18bb2be338" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-7b52-a5ae-5e18bb2be338" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7663-8728-0603d12a6757" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7663-8728-0603d12a6757" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_EquitySecuritiesFVNIAndWithoutReadilyDeterminableFairValueUnrealizedGainLoss_019d1fa0-d9ab-79a3-8dcb-7b788d3cf20e" xlink:href="lob-20260331.xsd#lob_EquitySecuritiesFVNIAndWithoutReadilyDeterminableFairValueUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7fb5-964e-664e3507799f" xlink:to="loc_lob_EquitySecuritiesFVNIAndWithoutReadilyDeterminableFairValueUnrealizedGainLoss_019d1fa0-d9ab-79a3-8dcb-7b788d3cf20e" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofDebtSecuritiesAvailableforSaleinUnrealizedLossPositionDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofDebtSecuritiesAvailableforSaleinUnrealizedLossPositionDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofDebtSecuritiesAvailableforSaleinUnrealizedLossPositionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7770-9127-d5f2ee9065aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7770-9127-d5f2ee9065aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7219-9c1d-f5c488266e41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-7770-9127-d5f2ee9065aa" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7219-9c1d-f5c488266e41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7219-9c1d-f5c488266e41_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7219-9c1d-f5c488266e41" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7219-9c1d-f5c488266e41_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-731a-b5ca-f237ed9f5d56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7219-9c1d-f5c488266e41" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-731a-b5ca-f237ed9f5d56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7ebf-9c9b-44ac50420a6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-731a-b5ca-f237ed9f5d56" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-7ebf-9c9b-44ac50420a6c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7d40-a378-92cfbee4dc05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageBackedSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-731a-b5ca-f237ed9f5d56" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7d40-a378-92cfbee4dc05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7170-b1c1-a3428d5b8d45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-731a-b5ca-f237ed9f5d56" xlink:to="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-7170-b1c1-a3428d5b8d45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_019d1fa0-d9ab-79ca-948f-772e10e4e4f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_019d1fa0-d9ab-79ca-948f-772e10e4e4f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_019d1fa0-d9ab-75b3-b6c8-ecad471bafb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_019d1fa0-d9ab-75b3-b6c8-ecad471bafb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_019d1fa0-d9ab-7e04-9acd-242b9d8f765f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_019d1fa0-d9ab-7e04-9acd-242b9d8f765f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_019d1fa0-d9ab-799d-b25e-3ef5ce439ad2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_019d1fa0-d9ab-799d-b25e-3ef5ce439ad2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_019d1fa0-d9ab-7f5d-9d68-9a94b5971f73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_019d1fa0-d9ab-7f5d-9d68-9a94b5971f73" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_019d1fa0-d9ab-7416-9f58-938d359a8235" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7a97-91b9-d10f824c86ea" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_019d1fa0-d9ab-7416-9f58-938d359a8235" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofInvestmentSecuritiesbyMaturityDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofInvestmentSecuritiesbyMaturityDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofInvestmentSecuritiesbyMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7153-9725-523dd82013bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-758b-ae0d-8600fed3fb2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7153-9725-523dd82013bc" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-758b-ae0d-8600fed3fb2f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7063-9013-519deb6a1499" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_019d1fa0-d9ab-758b-ae0d-8600fed3fb2f" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7063-9013-519deb6a1499" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7063-9013-519deb6a1499_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7063-9013-519deb6a1499" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7063-9013-519deb6a1499_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b54-a3db-b8b34d04491e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ab-7063-9013-519deb6a1499" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b54-a3db-b8b34d04491e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-778a-ab06-e1a57dda8bf3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b54-a3db-b8b34d04491e" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d1fa0-d9ab-778a-ab06-e1a57dda8bf3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7273-b953-fcfc5411e833" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageBackedSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b54-a3db-b8b34d04491e" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_019d1fa0-d9ab-7273-b953-fcfc5411e833" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-732f-bb97-31235b40b7c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ab-7b54-a3db-b8b34d04491e" xlink:to="loc_us-gaap_MunicipalBondsMember_019d1fa0-d9ab-732f-bb97-31235b40b7c1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7153-9725-523dd82013bc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_019d1fa0-d9ab-7c8f-9f23-c44a2f076983" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_019d1fa0-d9ab-7c8f-9f23-c44a2f076983" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_019d1fa0-d9ab-74fb-a370-33de29f3066a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_019d1fa0-d9ab-74fb-a370-33de29f3066a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_019d1fa0-d9ab-7c2b-9448-2f8d029061ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_019d1fa0-d9ab-7c2b-9448-2f8d029061ee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_019d1fa0-d9ab-7ecb-bc60-800d4ed12244" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_019d1fa0-d9ab-7ecb-bc60-800d4ed12244" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7510-b50e-8b4aa106c747" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_019d1fa0-d9ab-79d2-8d3c-fd6b0f7e41fc" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_019d1fa0-d9ab-7510-b50e-8b4aa106c747" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_019d1fa0-d9ab-7153-9725-523dd82013bc" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_019d1fa0-d9ab-738f-b74d-07094a40d48c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_019d1fa0-d9ab-738f-b74d-07094a40d48c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_019d1fa0-d9ab-7a9f-89d8-a585b208b3fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_019d1fa0-d9ab-7a9f-89d8-a585b208b3fe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_019d1fa0-d9ab-783d-b1d4-4207192709ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_019d1fa0-d9ab-783d-b1d4-4207192709ee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_019d1fa0-d9ab-70ae-8548-a6df5ac02eae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_019d1fa0-d9ab-70ae-8548-a6df5ac02eae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-7f62-8442-80db8b0d2b24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_019d1fa0-d9ab-7d8f-b3ec-359205098b91" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d1fa0-d9ab-7f62-8442-80db8b0d2b24" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-7e14-938b-da3ee37a821f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-79c4-b917-aa24b4d16da1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-7e14-938b-da3ee37a821f" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-79c4-b917-aa24b4d16da1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-71ba-a46c-a51d47db2916" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-79c4-b917-aa24b4d16da1" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-71ba-a46c-a51d47db2916" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-71ba-a46c-a51d47db2916_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-71ba-a46c-a51d47db2916" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-71ba-a46c-a51d47db2916_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-71ba-a46c-a51d47db2916" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesSBICFundLPMember_019d1fa0-d9ab-7040-8270-10aecfc6bc36" xlink:href="lob-20260331.xsd#lob_CanapiVenturesSBICFundLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_CanapiVenturesSBICFundLPMember_019d1fa0-d9ab-7040-8270-10aecfc6bc36" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesFundLPMember_019d1fa0-d9ab-79e7-b9df-3aa27f8a8c56" xlink:href="lob-20260331.xsd#lob_CanapiVenturesFundLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_CanapiVenturesFundLPMember_019d1fa0-d9ab-79e7-b9df-3aa27f8a8c56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesFundIILPMember_019d1fa0-d9ab-790c-84ba-5252773460b5" xlink:href="lob-20260331.xsd#lob_CanapiVenturesFundIILPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_CanapiVenturesFundIILPMember_019d1fa0-d9ab-790c-84ba-5252773460b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesSBICFundIILPMember_019d1fa0-d9ab-75f9-97b8-49219ed2735a" xlink:href="lob-20260331.xsd#lob_CanapiVenturesSBICFundIILPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_CanapiVenturesSBICFundIILPMember_019d1fa0-d9ab-75f9-97b8-49219ed2735a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_AffordableHousingMember_019d1fa0-d9ab-7092-b3d6-96ae03b1153f" xlink:href="lob-20260331.xsd#lob_AffordableHousingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_AffordableHousingMember_019d1fa0-d9ab-7092-b3d6-96ae03b1153f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ab-79dd-8bb6-02d987e33f43" xlink:href="lob-20260331.xsd#lob_SolarTaxCreditInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ab-79dd-8bb6-02d987e33f43" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_OtherMember_019d1fa0-d9ab-7640-9bb0-15b4c1b8bb24" xlink:href="lob-20260331.xsd#lob_OtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-7922-85a4-beab438b6308" xlink:to="loc_lob_OtherMember_019d1fa0-d9ab-7640-9bb0-15b4c1b8bb24" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_019d1fa0-d9ab-7957-a7ee-c0b92de83f85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-7e14-938b-da3ee37a821f" xlink:to="loc_us-gaap_EquityMethodInvestments_019d1fa0-d9ab-7957-a7ee-c0b92de83f85" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019d1fa0-d9ab-7f82-a4f7-59fd7591a5b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-7e14-938b-da3ee37a821f" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019d1fa0-d9ab-7f82-a4f7-59fd7591a5b8" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofCarryingandOwnershipPercentageofEachEquityMethodInvestmentNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-75cb-8c32-c1a80bad99c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-78a4-866b-6346b537b286" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-75cb-8c32-c1a80bad99c6" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-78a4-866b-6346b537b286" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019d1fa0-d9ab-7c88-a714-15fa5b25a936" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-78a4-866b-6346b537b286" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019d1fa0-d9ab-7c88-a714-15fa5b25a936" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7c88-a714-15fa5b25a936_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019d1fa0-d9ab-7c88-a714-15fa5b25a936" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7c88-a714-15fa5b25a936_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019d1fa0-d9ab-7c88-a714-15fa5b25a936" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesSBICFundLPMember_019d1fa0-d9ab-7dc9-a21d-9b79758ed728" xlink:href="lob-20260331.xsd#lob_CanapiVenturesSBICFundLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:to="loc_lob_CanapiVenturesSBICFundLPMember_019d1fa0-d9ab-7dc9-a21d-9b79758ed728" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesFundLPMember_019d1fa0-d9ab-7646-bede-2c9c361d449e" xlink:href="lob-20260331.xsd#lob_CanapiVenturesFundLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:to="loc_lob_CanapiVenturesFundLPMember_019d1fa0-d9ab-7646-bede-2c9c361d449e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesFundIILPMember_019d1fa0-d9ab-7415-a4b9-f2089edd0cf9" xlink:href="lob-20260331.xsd#lob_CanapiVenturesFundIILPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:to="loc_lob_CanapiVenturesFundIILPMember_019d1fa0-d9ab-7415-a4b9-f2089edd0cf9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiVenturesSBICFundIILPMember_019d1fa0-d9ab-7d35-8fbe-1951ada3916f" xlink:href="lob-20260331.xsd#lob_CanapiVenturesSBICFundIILPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019d1fa0-d9ab-7de7-aaa8-bb39e574f149" xlink:to="loc_lob_CanapiVenturesSBICFundIILPMember_019d1fa0-d9ab-7d35-8fbe-1951ada3916f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ab-78a4-866b-6346b537b286" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019d1fa0-d9ab-740d-b0a4-56d7360cd1f3" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_EstrellaLandingMember_019d1fa0-d9ab-7044-b81d-88b7433ae3d9" xlink:href="lob-20260331.xsd#lob_EstrellaLandingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:to="loc_lob_EstrellaLandingMember_019d1fa0-d9ab-7044-b81d-88b7433ae3d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CapeFearCollective1Member_019d1fa0-d9ab-79c3-920e-ac7d16aa7b7a" xlink:href="lob-20260331.xsd#lob_CapeFearCollective1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:to="loc_lob_CapeFearCollective1Member_019d1fa0-d9ab-79c3-920e-ac7d16aa7b7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CapeFearCollective2Member_019d1fa0-d9ab-74f2-917b-22e487ae8834" xlink:href="lob-20260331.xsd#lob_CapeFearCollective2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:to="loc_lob_CapeFearCollective2Member_019d1fa0-d9ab-74f2-917b-22e487ae8834" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_GreenSunSunVestHEPAndHeelstoneMember_019d1fa0-d9ab-7419-8e8f-959d2681643e" xlink:href="lob-20260331.xsd#lob_GreenSunSunVestHEPAndHeelstoneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:to="loc_lob_GreenSunSunVestHEPAndHeelstoneMember_019d1fa0-d9ab-7419-8e8f-959d2681643e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_OTRFundILLCMember_019d1fa0-d9ab-7395-943d-d00cd9ea113e" xlink:href="lob-20260331.xsd#lob_OTRFundILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019d1fa0-d9ab-78a2-85d9-8f1f5ef187e3" xlink:to="loc_lob_OTRFundILLCMember_019d1fa0-d9ab-7395-943d-d00cd9ea113e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_EquityMethodInvestmentsUnfundedCommittedAmountOfInvestment_019d1fa0-d9ac-7dcf-89e4-42d83467831b" xlink:href="lob-20260331.xsd#lob_EquityMethodInvestmentsUnfundedCommittedAmountOfInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-75cb-8c32-c1a80bad99c6" xlink:to="loc_lob_EquityMethodInvestmentsUnfundedCommittedAmountOfInvestment_019d1fa0-d9ac-7dcf-89e4-42d83467831b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019d1fa0-d9ac-7541-b37a-213f794b9f3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ab-75cb-8c32-c1a80bad99c6" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019d1fa0-d9ac-7541-b37a-213f794b9f3b" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7d31-9397-c1c8502f2e5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-7f5e-adea-024e544bc452" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7d31-9397-c1c8502f2e5d" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-7f5e-adea-024e544bc452" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-77d7-be16-679d8e256db8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-7f5e-adea-024e544bc452" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-77d7-be16-679d8e256db8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-77d7-be16-679d8e256db8_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-77d7-be16-679d8e256db8" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-77d7-be16-679d8e256db8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-727c-ab21-58fb1e5d8673" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-77d7-be16-679d8e256db8" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-727c-ab21-58fb1e5d8673" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_019d1fa0-d9ac-7d5f-8490-c1834378aaa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-727c-ab21-58fb1e5d8673" xlink:to="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_019d1fa0-d9ac-7d5f-8490-c1834378aaa5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7df2-ae47-3aace3be7928" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-7f5e-adea-024e544bc452" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7df2-ae47-3aace3be7928" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7df2-ae47-3aace3be7928_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7df2-ae47-3aace3be7928" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7df2-ae47-3aace3be7928_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7df2-ae47-3aace3be7928" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ac-767a-9e59-6191efb375b3" xlink:href="lob-20260331.xsd#lob_SolarTaxCreditInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:to="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ac-767a-9e59-6191efb375b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_AffordableHousingMember_019d1fa0-d9ac-74af-b3d6-28de44db41fc" xlink:href="lob-20260331.xsd#lob_AffordableHousingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:to="loc_lob_AffordableHousingMember_019d1fa0-d9ac-74af-b3d6-28de44db41fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiFundsMember_019d1fa0-d9ac-7f3e-9855-5506b6445db8" xlink:href="lob-20260331.xsd#lob_CanapiFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:to="loc_lob_CanapiFundsMember_019d1fa0-d9ac-7f3e-9855-5506b6445db8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_NonMarketableAndOtherEquitySecuritiesMember_019d1fa0-d9ac-73cb-afea-85da019f8e68" xlink:href="lob-20260331.xsd#lob_NonMarketableAndOtherEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7659-8b1c-b8f1c52aff78" xlink:to="loc_lob_NonMarketableAndOtherEquitySecuritiesMember_019d1fa0-d9ac-73cb-afea-85da019f8e68" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_019d1fa0-d9ac-7c23-a5fd-b9b68cbeedc0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Investments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7d31-9397-c1c8502f2e5d" xlink:to="loc_us-gaap_Investments_019d1fa0-d9ac-7c23-a5fd-b9b68cbeedc0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_019d1fa0-d9ac-74a0-9a15-440b2c7c8e38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7d31-9397-c1c8502f2e5d" xlink:to="loc_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_019d1fa0-d9ac-74a0-9a15-440b2c7c8e38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019d1fa0-d9ac-7d3c-b46a-2ef18fd9ab05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7d31-9397-c1c8502f2e5d" xlink:to="loc_us-gaap_Liabilities_019d1fa0-d9ac-7d3c-b46a-2ef18fd9ab05" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/InvestmentsScheduleofVariableInterestEntitiesNotConsolidatedNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7792-8948-0fd180665f96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-78f3-8d74-1f492eae2f4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7792-8948-0fd180665f96" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-78f3-8d74-1f492eae2f4b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-7f37-af2c-f607f7e18c70" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-78f3-8d74-1f492eae2f4b" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-7f37-af2c-f607f7e18c70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-7f37-af2c-f607f7e18c70_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-7f37-af2c-f607f7e18c70" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-7f37-af2c-f607f7e18c70_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-7a45-b4df-52fdeb356d8b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019d1fa0-d9ac-7f37-af2c-f607f7e18c70" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-7a45-b4df-52fdeb356d8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_019d1fa0-d9ac-7ef0-8b8e-f6f72af9fe94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019d1fa0-d9ac-7a45-b4df-52fdeb356d8b" xlink:to="loc_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_019d1fa0-d9ac-7ef0-8b8e-f6f72af9fe94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_019d1fa0-d9ac-78f3-8d74-1f492eae2f4b" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d1fa0-d9ac-7c4e-91e4-81df43a6c0be" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ac-7065-8eab-53ad2c3306dc" xlink:href="lob-20260331.xsd#lob_SolarTaxCreditInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:to="loc_lob_SolarTaxCreditInvestmentsMember_019d1fa0-d9ac-7065-8eab-53ad2c3306dc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_AffordableHousingMember_019d1fa0-d9ac-7d25-b828-ac4f78294b0d" xlink:href="lob-20260331.xsd#lob_AffordableHousingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:to="loc_lob_AffordableHousingMember_019d1fa0-d9ac-7d25-b828-ac4f78294b0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CanapiFundsMember_019d1fa0-d9ac-7cd7-ba04-f6498f51a53d" xlink:href="lob-20260331.xsd#lob_CanapiFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:to="loc_lob_CanapiFundsMember_019d1fa0-d9ac-7cd7-ba04-f6498f51a53d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_NonMarketableAndOtherEquitySecuritiesMember_019d1fa0-d9ac-73a7-b18b-e60303162bd5" xlink:href="lob-20260331.xsd#lob_NonMarketableAndOtherEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d1fa0-d9ac-76d2-bfc3-574ea7ff9ee8" xlink:to="loc_lob_NonMarketableAndOtherEquitySecuritiesMember_019d1fa0-d9ac-73a7-b18b-e60303162bd5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_019d1fa0-d9ac-7cdd-b137-676caafbce1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Investments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7792-8948-0fd180665f96" xlink:to="loc_us-gaap_Investments_019d1fa0-d9ac-7cdd-b137-676caafbce1d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_InvestmentTaxCreditRecapture_019d1fa0-d9ac-7d9e-b851-e55bf1f9345a" xlink:href="lob-20260331.xsd#lob_InvestmentTaxCreditRecapture"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7792-8948-0fd180665f96" xlink:to="loc_lob_InvestmentTaxCreditRecapture_019d1fa0-d9ac-7d9e-b851-e55bf1f9345a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_InvestmentUnfundedCommitments_019d1fa0-d9ac-73a0-8c8b-1ea380f13d4c" xlink:href="lob-20260331.xsd#lob_InvestmentUnfundedCommitments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_019d1fa0-d9ac-7792-8948-0fd180665f96" xlink:to="loc_lob_InvestmentUnfundedCommitments_019d1fa0-d9ac-73a0-8c8b-1ea380f13d4c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofTotalLoansandLeasesHeldforInvestmentandAgingAnalysisofPortfolioSegmentsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofTotalLoansandLeasesHeldforInvestmentandAgingAnalysisofPortfolioSegmentsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofTotalLoansandLeasesHeldforInvestmentandAgingAnalysisofPortfolioSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" 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_019d2080-cd58-736d-8333-1817763b2996" 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_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-736d-8333-1817763b2996" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-75d6-8c81-bc75844077f5" 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_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-736d-8333-1817763b2996" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-75d6-8c81-bc75844077f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-75d6-8c81-bc75844077f5_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_019d2080-cd58-75d6-8c81-bc75844077f5" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-75d6-8c81-bc75844077f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" 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_019d2080-cd58-75d6-8c81-bc75844077f5" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-76d7-890d-4287f4f9c744" xlink:href="lob-20260331.xsd#lob_CommercialAndIndustrialPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" xlink:to="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-76d7-890d-4287f4f9c744" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-74d1-add1-468a118dedfb" xlink:href="lob-20260331.xsd#lob_ConstructionAndDevelopmentPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" xlink:to="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-74d1-add1-468a118dedfb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7cf4-9321-d19bf6e12bbe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialRealEstatePortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" xlink:to="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7cf4-9321-d19bf6e12bbe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7b58-8afd-6186896c8cf0" xlink:href="lob-20260331.xsd#lob_CommercialLandPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7470-a875-021bc5e55694" xlink:to="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7b58-8afd-6186896c8cf0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7300-8d06-510de93b1cb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-736d-8333-1817763b2996" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7300-8d06-510de93b1cb0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-7300-8d06-510de93b1cb0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7300-8d06-510de93b1cb0" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-7300-8d06-510de93b1cb0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-715d-977d-5b79a1c8c250" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7300-8d06-510de93b1cb0" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-715d-977d-5b79a1c8c250" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoanAndLeasesIssuedGuaranteedBalanceMember_019d2080-cd58-76b2-97fe-8490eeda6583" xlink:href="lob-20260331.xsd#lob_LoanAndLeasesIssuedGuaranteedBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-715d-977d-5b79a1c8c250" xlink:to="loc_lob_LoanAndLeasesIssuedGuaranteedBalanceMember_019d2080-cd58-76b2-97fe-8490eeda6583" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019d2080-cd58-7a9d-b904-a50b626bcfbf" 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_019d2080-cd58-736d-8333-1817763b2996" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019d2080-cd58-7a9d-b904-a50b626bcfbf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7a9d-b904-a50b626bcfbf_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_019d2080-cd58-7a9d-b904-a50b626bcfbf" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7a9d-b904-a50b626bcfbf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7877-b3e9-ba9692ba7146" 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_019d2080-cd58-7a9d-b904-a50b626bcfbf" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7877-b3e9-ba9692ba7146" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-782e-a45d-e6909f1ca9f4" 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_019d2080-cd58-7877-b3e9-ba9692ba7146" xlink:to="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-782e-a45d-e6909f1ca9f4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019d2080-cd58-748e-a36a-4ada10bdca36" 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_FinancialAssetPastDueMember_019d2080-cd58-782e-a45d-e6909f1ca9f4" xlink:to="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019d2080-cd58-748e-a36a-4ada10bdca36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FinancialAsset30To89DaysPastDueMember_019d2080-cd58-79dd-a2b9-9974acddd204" xlink:href="lob-20260331.xsd#lob_FinancialAsset30To89DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-782e-a45d-e6909f1ca9f4" xlink:to="loc_lob_FinancialAsset30To89DaysPastDueMember_019d2080-cd58-79dd-a2b9-9974acddd204" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_019d2080-cd58-7306-8bc8-5a4f84c1039d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-782e-a45d-e6909f1ca9f4" xlink:to="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_019d2080-cd58-7306-8bc8-5a4f84c1039d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7582-8184-796809678c3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-736d-8333-1817763b2996" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7582-8184-796809678c3e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7582-8184-796809678c3e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7582-8184-796809678c3e" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7582-8184-796809678c3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7b8d-9fc2-7a9f9e32a570" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7582-8184-796809678c3e" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7b8d-9fc2-7a9f9e32a570" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ReceivablesNotUnderTheFairValueOptionMember_019d2080-cd58-7b77-9dc2-5e028001e889" xlink:href="lob-20260331.xsd#lob_ReceivablesNotUnderTheFairValueOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7b8d-9fc2-7a9f9e32a570" xlink:to="loc_lob_ReceivablesNotUnderTheFairValueOptionMember_019d2080-cd58-7b77-9dc2-5e028001e889" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ReceivablesUnderTheFairValueOptionMember_019d2080-cd58-7216-bb8d-0a7996691f27" xlink:href="lob-20260331.xsd#lob_ReceivablesUnderTheFairValueOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7b8d-9fc2-7a9f9e32a570" xlink:to="loc_lob_ReceivablesUnderTheFairValueOptionMember_019d2080-cd58-7216-bb8d-0a7996691f27" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-731f-8f17-7ce8cab76517" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-736d-8333-1817763b2996" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-731f-8f17-7ce8cab76517" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-731f-8f17-7ce8cab76517_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-731f-8f17-7ce8cab76517" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-731f-8f17-7ce8cab76517_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7e78-8a3b-5e40cc55e6d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-731f-8f17-7ce8cab76517" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7e78-8a3b-5e40cc55e6d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7915-b525-f3414614eb40" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7e78-8a3b-5e40cc55e6d6" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7915-b525-f3414614eb40" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7944-add6-b01a11f8a4dc" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7e78-8a3b-5e40cc55e6d6" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7944-add6-b01a11f8a4dc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-7cae-8aaf-dbfd99bed93b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-7cae-8aaf-dbfd99bed93b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount_019d2080-cd58-7aee-8982-bc1996da4b20" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_us-gaap_FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount_019d2080-cd58-7aee-8982-bc1996da4b20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019d2080-cd58-767c-b0cc-91941410b61b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019d2080-cd58-767c-b0cc-91941410b61b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_NotesReceivableGrossPercentage_019d2080-cd58-7f8b-b870-151eb1f6885f" xlink:href="lob-20260331.xsd#lob_NotesReceivableGrossPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_lob_NotesReceivableGrossPercentage_019d2080-cd58-7f8b-b870-151eb1f6885f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansAndLeasesReceivableAtAmortizedCostPercentage_019d2080-cd58-794b-be15-eeafbfdd2748" xlink:href="lob-20260331.xsd#lob_LoansAndLeasesReceivableAtAmortizedCostPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_lob_LoansAndLeasesReceivableAtAmortizedCostPercentage_019d2080-cd58-794b-be15-eeafbfdd2748" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansReceivableFairValueDisclosurePercentage_019d2080-cd58-7b68-8d05-90599b2252ce" xlink:href="lob-20260331.xsd#lob_LoansReceivableFairValueDisclosurePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_lob_LoansReceivableFairValueDisclosurePercentage_019d2080-cd58-7b68-8d05-90599b2252ce" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansAndLeasesReceivableBeforeFeesGrossPercentage_019d2080-cd58-74e6-b840-6141030e3289" xlink:href="lob-20260331.xsd#lob_LoansAndLeasesReceivableBeforeFeesGrossPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7d58-bf31-db0d45c2bba0" xlink:to="loc_lob_LoansAndLeasesReceivableBeforeFeesGrossPercentage_019d2080-cd58-74e6-b840-6141030e3289" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-7665-aa9d-84329b5c9c6c" 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_019d2080-cd58-7195-948d-3c79f7df77dc" 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_019d2080-cd58-7665-aa9d-84329b5c9c6c" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7195-948d-3c79f7df77dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7380-94bd-5724554a9873" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7195-948d-3c79f7df77dc" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7380-94bd-5724554a9873" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7380-94bd-5724554a9873_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7380-94bd-5724554a9873" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7380-94bd-5724554a9873_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7fe1-b07a-45cec9146a69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-7380-94bd-5724554a9873" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7fe1-b07a-45cec9146a69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ReceivablesNotUnderTheFairValueOptionMember_019d2080-cd58-7ea1-b59b-3116ab796004" xlink:href="lob-20260331.xsd#lob_ReceivablesNotUnderTheFairValueOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7fe1-b07a-45cec9146a69" xlink:to="loc_lob_ReceivablesNotUnderTheFairValueOptionMember_019d2080-cd58-7ea1-b59b-3116ab796004" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7138-8bad-48c54ccc6693" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7195-948d-3c79f7df77dc" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7138-8bad-48c54ccc6693" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7138-8bad-48c54ccc6693_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7138-8bad-48c54ccc6693" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7138-8bad-48c54ccc6693_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-771e-aeb7-f315ce091b56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7138-8bad-48c54ccc6693" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-771e-aeb7-f315ce091b56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-79df-9021-42c32853f7b8" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-771e-aeb7-f315ce091b56" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-79df-9021-42c32853f7b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7c75-95ca-279d90c8fc9e" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-771e-aeb7-f315ce091b56" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7c75-95ca-279d90c8fc9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-7532-b345-849658de4c51" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7195-948d-3c79f7df77dc" xlink:to="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-7532-b345-849658de4c51" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-7532-b345-849658de4c51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-7532-b345-849658de4c51" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-7532-b345-849658de4c51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71e6-aeb7-37400100eb1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-7532-b345-849658de4c51" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71e6-aeb7-37400100eb1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PassMember_019d2080-cd58-789e-87e9-7eda53b293eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PassMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71e6-aeb7-37400100eb1c" xlink:to="loc_us-gaap_PassMember_019d2080-cd58-789e-87e9-7eda53b293eb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SpecialMentionMember_019d2080-cd58-707c-973c-9959ea8e617a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SpecialMentionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71e6-aeb7-37400100eb1c" xlink:to="loc_us-gaap_SpecialMentionMember_019d2080-cd58-707c-973c-9959ea8e617a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubstandardMember_019d2080-cd58-7574-8e75-d6c688f53b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubstandardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71e6-aeb7-37400100eb1c" xlink:to="loc_us-gaap_SubstandardMember_019d2080-cd58-7574-8e75-d6c688f53b9d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-7665-aa9d-84329b5c9c6c" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_019d2080-cd58-7202-b169-cec682e32cd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_019d2080-cd58-7202-b169-cec682e32cd6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_019d2080-cd58-7cd7-acd6-1b7d151844d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_019d2080-cd58-7cd7-acd6-1b7d151844d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_019d2080-cd58-7afb-87cb-1f08f940fa9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_019d2080-cd58-7afb-87cb-1f08f940fa9e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_019d2080-cd58-7bc3-9a16-f78d7bb49448" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_019d2080-cd58-7bc3-9a16-f78d7bb49448" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_019d2080-cd58-7da4-8465-76432bdafe4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_019d2080-cd58-7da4-8465-76432bdafe4b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_019d2080-cd58-7b69-b6fe-ebed8d2579bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_019d2080-cd58-7b69-b6fe-ebed8d2579bd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolving_019d2080-cd58-7e19-9818-c6baa16829dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestRevolving"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolving_019d2080-cd58-7e19-9818-c6baa16829dc" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan_019d2080-cd58-76c2-af4c-6645a2b71e5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan_019d2080-cd58-76c2-af4c-6645a2b71e5b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-738e-a217-a39f21563d00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract_019d2080-cd58-73b0-85a8-bd58ead6c4d0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-738e-a217-a39f21563d00" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-7665-aa9d-84329b5c9c6c" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff_019d2080-cd58-7c85-b991-2e9c19bdcccc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff_019d2080-cd58-7c85-b991-2e9c19bdcccc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7592-a6e7-b3c815f68176" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7592-a6e7-b3c815f68176" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7277-8197-73eead30f9a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7277-8197-73eead30f9a8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7e35-a148-ae59391532a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-7e35-a148-ae59391532a4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-777d-bfeb-3ccfcdb2c20a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-777d-bfeb-3ccfcdb2c20a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-79c6-8d3a-070929b017c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019d2080-cd58-79c6-8d3a-070929b017c0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff_019d2080-cd58-73d5-8fd0-f5913c57fa8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff_019d2080-cd58-73d5-8fd0-f5913c57fa8e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff_019d2080-cd58-7a1f-95fe-041568852a93" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff_019d2080-cd58-7a1f-95fe-041568852a93" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff_019d2080-cd58-703d-8c9d-046a16d4a7f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract_019d2080-cd58-7c01-9acc-8d94f12beb2f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff_019d2080-cd58-703d-8c9d-046a16d4a7f7" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAssetQualityIndicatorsbyPortfolioClassandOriginationYearNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-7671-94b8-707dbc9b979f" 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_019d2080-cd58-798a-bf7a-211a8ac433fb" 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_019d2080-cd58-7671-94b8-707dbc9b979f" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-798a-bf7a-211a8ac433fb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-79c2-8ca2-a6092b32659d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-798a-bf7a-211a8ac433fb" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-79c2-8ca2-a6092b32659d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-79c2-8ca2-a6092b32659d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-79c2-8ca2-a6092b32659d" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-79c2-8ca2-a6092b32659d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7867-ab2b-b420fb25b8b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019d2080-cd58-79c2-8ca2-a6092b32659d" xlink:to="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7867-ab2b-b420fb25b8b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ReceivablesUnderTheFairValueOptionMember_019d2080-cd58-7c1b-bc8c-d2d6f308d892" xlink:href="lob-20260331.xsd#lob_ReceivablesUnderTheFairValueOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019d2080-cd58-7867-ab2b-b420fb25b8b3" xlink:to="loc_lob_ReceivablesUnderTheFairValueOptionMember_019d2080-cd58-7c1b-bc8c-d2d6f308d892" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-775b-a1b8-e2289502416f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-7671-94b8-707dbc9b979f" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess_019d2080-cd58-775b-a1b8-e2289502416f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofGuaranteedandUnguaranteedLoanandLeaseBalancebyAssetQualityIndicatorDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofGuaranteedandUnguaranteedLoanandLeaseBalancebyAssetQualityIndicatorDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofGuaranteedandUnguaranteedLoanandLeaseBalancebyAssetQualityIndicatorDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-783d-a431-8f9050b1b69e" 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_019d2080-cd58-7788-a950-eb29024df3a3" 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_019d2080-cd58-783d-a431-8f9050b1b69e" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7788-a950-eb29024df3a3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-74cc-bfef-72d32cb05af7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7788-a950-eb29024df3a3" xlink:to="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-74cc-bfef-72d32cb05af7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-74cc-bfef-72d32cb05af7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-74cc-bfef-72d32cb05af7" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-74cc-bfef-72d32cb05af7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71b8-bb67-695fedd6748c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalCreditAssessmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_019d2080-cd58-74cc-bfef-72d32cb05af7" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71b8-bb67-695fedd6748c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PassMember_019d2080-cd58-7da3-aea1-8e30a9ad2eeb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PassMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71b8-bb67-695fedd6748c" xlink:to="loc_us-gaap_PassMember_019d2080-cd58-7da3-aea1-8e30a9ad2eeb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SpecialMentionMember_019d2080-cd58-7e39-bd9f-bf3064c91a83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SpecialMentionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71b8-bb67-695fedd6748c" xlink:to="loc_us-gaap_SpecialMentionMember_019d2080-cd58-7e39-bd9f-bf3064c91a83" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubstandardMember_019d2080-cd58-761c-b81b-21575eae4f6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubstandardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_019d2080-cd58-71b8-bb67-695fedd6748c" xlink:to="loc_us-gaap_SubstandardMember_019d2080-cd58-761c-b81b-21575eae4f6e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-76bf-bbdf-ee613232b150" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019d2080-cd58-7788-a950-eb29024df3a3" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-76bf-bbdf-ee613232b150" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-76bf-bbdf-ee613232b150_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-76bf-bbdf-ee613232b150" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-76bf-bbdf-ee613232b150_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-724c-a9d0-ab4f126b52ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-76bf-bbdf-ee613232b150" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-724c-a9d0-ab4f126b52ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember_019d2080-cd58-7a9c-aed2-079171f2a5a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-724c-a9d0-ab4f126b52ac" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember_019d2080-cd58-7a9c-aed2-079171f2a5a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedLoanExposureMember_019d2080-cd58-7fff-8e4a-1fe79ff7db35" xlink:href="lob-20260331.xsd#lob_UnguaranteedLoanExposureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-724c-a9d0-ab4f126b52ac" xlink:to="loc_lob_UnguaranteedLoanExposureMember_019d2080-cd58-7fff-8e4a-1fe79ff7db35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedLoanPercentageOfGuaranteedMember_019d2080-cd58-75ad-9512-dab28938b62a" xlink:href="lob-20260331.xsd#lob_UnguaranteedLoanPercentageOfGuaranteedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-724c-a9d0-ab4f126b52ac" xlink:to="loc_lob_UnguaranteedLoanPercentageOfGuaranteedMember_019d2080-cd58-75ad-9512-dab28938b62a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansAndLeasesReceivableAtAmortizedCost_019d2080-cd58-7c92-9a05-993f25a08861" xlink:href="lob-20260331.xsd#lob_LoansAndLeasesReceivableAtAmortizedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-783d-a431-8f9050b1b69e" xlink:to="loc_lob_LoansAndLeasesReceivableAtAmortizedCost_019d2080-cd58-7c92-9a05-993f25a08861" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FinancingReceivablePercentageOfGuaranteed_019d2080-cd58-70bb-8205-999eedad2bf7" xlink:href="lob-20260331.xsd#lob_FinancingReceivablePercentageOfGuaranteed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019d2080-cd58-783d-a431-8f9050b1b69e" xlink:to="loc_lob_FinancingReceivablePercentageOfGuaranteed_019d2080-cd58-70bb-8205-999eedad2bf7" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofNonaccrualLoansandLeasesDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofNonaccrualLoansandLeasesDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofNonaccrualLoansandLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7979-a56e-2789ba60c6d1" 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_019d2080-cd58-7048-a9eb-31450801bb51" 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_019d2080-cd58-7979-a56e-2789ba60c6d1" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7048-a9eb-31450801bb51" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-77a9-a190-bce38de5c358" 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_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7048-a9eb-31450801bb51" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-77a9-a190-bce38de5c358" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-77a9-a190-bce38de5c358_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_019d2080-cd58-77a9-a190-bce38de5c358" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-77a9-a190-bce38de5c358_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" 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_019d2080-cd58-77a9-a190-bce38de5c358" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-7d86-8ba6-bb700b002b59" xlink:href="lob-20260331.xsd#lob_CommercialAndIndustrialPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" xlink:to="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-7d86-8ba6-bb700b002b59" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-72ea-9cad-89ce3f8db9e4" xlink:href="lob-20260331.xsd#lob_ConstructionAndDevelopmentPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" xlink:to="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-72ea-9cad-89ce3f8db9e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-782a-954d-b85808578470" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialRealEstatePortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" xlink:to="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-782a-954d-b85808578470" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-746b-b735-270ad16a920b" xlink:href="lob-20260331.xsd#lob_CommercialLandPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7d97-b67a-e477870e1ec3" xlink:to="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-746b-b735-270ad16a920b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7738-ac1e-3b01ab64e01c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7048-a9eb-31450801bb51" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7738-ac1e-3b01ab64e01c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-7738-ac1e-3b01ab64e01c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7738-ac1e-3b01ab64e01c" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-7738-ac1e-3b01ab64e01c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-703e-a60b-9f5cf3789f63" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_019d2080-cd58-7738-ac1e-3b01ab64e01c" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-703e-a60b-9f5cf3789f63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember_019d2080-cd58-75e6-84f7-b066560a76ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-703e-a60b-9f5cf3789f63" xlink:to="loc_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember_019d2080-cd58-75e6-84f7-b066560a76ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedLoanExposureMember_019d2080-cd58-7509-8708-edc90b030031" xlink:href="lob-20260331.xsd#lob_UnguaranteedLoanExposureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-703e-a60b-9f5cf3789f63" xlink:to="loc_lob_UnguaranteedLoanExposureMember_019d2080-cd58-7509-8708-edc90b030031" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedExposureWithNoAllowanceForCreditLossesMember_019d2080-cd58-728e-abd3-ef6d62f46504" xlink:href="lob-20260331.xsd#lob_UnguaranteedExposureWithNoAllowanceForCreditLossesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_019d2080-cd58-703e-a60b-9f5cf3789f63" xlink:to="loc_lob_UnguaranteedExposureWithNoAllowanceForCreditLossesMember_019d2080-cd58-728e-abd3-ef6d62f46504" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7b42-9bb2-6bbabf902ede" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7048-a9eb-31450801bb51" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7b42-9bb2-6bbabf902ede" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7b42-9bb2-6bbabf902ede_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7b42-9bb2-6bbabf902ede" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7b42-9bb2-6bbabf902ede_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7de7-bd86-f904254b5d34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7b42-9bb2-6bbabf902ede" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7de7-bd86-f904254b5d34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-71b9-82b8-35c9931ddb94" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7de7-bd86-f904254b5d34" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-71b9-82b8-35c9931ddb94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7045-8328-a08fd48781ec" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7de7-bd86-f904254b5d34" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7045-8328-a08fd48781ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_019d2080-cd58-7920-ae5a-318be1980f43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7979-a56e-2789ba60c6d1" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_019d2080-cd58-7920-ae5a-318be1980f43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableNonaccrualNoAllowance_019d2080-cd58-7754-b4cc-578f7f17976d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableNonaccrualNoAllowance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7979-a56e-2789ba60c6d1" xlink:to="loc_us-gaap_FinancingReceivableNonaccrualNoAllowance_019d2080-cd58-7754-b4cc-578f7f17976d" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAccruedInterestReversedDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAccruedInterestReversedDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAccruedInterestReversedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7b35-9418-5169bc1c1180" 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_019d2080-cd58-75de-a1d5-86d30a1d09fe" 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_019d2080-cd58-7b35-9418-5169bc1c1180" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-75de-a1d5-86d30a1d09fe" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-731e-8835-9647f11047c8" 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_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-75de-a1d5-86d30a1d09fe" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-731e-8835-9647f11047c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-731e-8835-9647f11047c8_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_019d2080-cd58-731e-8835-9647f11047c8" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-731e-8835-9647f11047c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" 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_019d2080-cd58-731e-8835-9647f11047c8" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-78dd-a494-7adb81f492c7" xlink:href="lob-20260331.xsd#lob_CommercialAndIndustrialPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" xlink:to="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-78dd-a494-7adb81f492c7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7fa9-9e51-04dfbae35245" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialRealEstatePortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" xlink:to="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7fa9-9e51-04dfbae35245" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7d3b-92a7-de241fe1c4a9" xlink:href="lob-20260331.xsd#lob_CommercialLandPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" xlink:to="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7d3b-92a7-de241fe1c4a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7549-9702-a3396e932b15" xlink:href="lob-20260331.xsd#lob_ConstructionAndDevelopmentPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7604-8f8e-9d6a0cc9d0b9" xlink:to="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7549-9702-a3396e932b15" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAccruedInterestWriteoff_019d2080-cd58-7551-ac8b-602b6d47c178" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAccruedInterestWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-7b35-9418-5169bc1c1180" xlink:to="loc_us-gaap_FinancingReceivableAccruedInterestWriteoff_019d2080-cd58-7551-ac8b-602b6d47c178" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAmortizedCostBasisofCollateralDependentLoansandLeasesDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAmortizedCostBasisofCollateralDependentLoansandLeasesDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofAmortizedCostBasisofCollateralDependentLoansandLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-710b-bf56-c9d80897bfee" 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_019d2080-cd58-7bd0-84ee-951467a6bba8" 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_019d2080-cd58-710b-bf56-c9d80897bfee" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7bd0-84ee-951467a6bba8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-72fc-be00-41908efc9558" 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_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7bd0-84ee-951467a6bba8" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-72fc-be00-41908efc9558" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-72fc-be00-41908efc9558_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_019d2080-cd58-72fc-be00-41908efc9558" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-72fc-be00-41908efc9558_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7ab8-8baf-ca15f6a8a630" 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_019d2080-cd58-72fc-be00-41908efc9558" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7ab8-8baf-ca15f6a8a630" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-7f4a-8e39-0c45e036e503" xlink:href="lob-20260331.xsd#lob_CommercialAndIndustrialPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7ab8-8baf-ca15f6a8a630" xlink:to="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-7f4a-8e39-0c45e036e503" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7ed1-a8bb-095b64bf6aa5" xlink:href="lob-20260331.xsd#lob_ConstructionAndDevelopmentPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7ab8-8baf-ca15f6a8a630" xlink:to="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7ed1-a8bb-095b64bf6aa5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7f35-9115-8cdc16592021" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialRealEstatePortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-7ab8-8baf-ca15f6a8a630" xlink:to="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7f35-9115-8cdc16592021" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralAxis_019d2080-cd58-7b63-9597-72d6803faf1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7bd0-84ee-951467a6bba8" xlink:to="loc_us-gaap_CollateralAxis_019d2080-cd58-7b63-9597-72d6803faf1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_019d2080-cd58-7b63-9597-72d6803faf1f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CollateralAxis_019d2080-cd58-7b63-9597-72d6803faf1f" xlink:to="loc_us-gaap_CollateralDomain_019d2080-cd58-7b63-9597-72d6803faf1f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CollateralAxis_019d2080-cd58-7b63-9597-72d6803faf1f" xlink:to="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CollateralDependentLoansRealEstateMember_019d2080-cd58-7752-8bea-ff4db1acf07a" xlink:href="lob-20260331.xsd#lob_CollateralDependentLoansRealEstateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:to="loc_lob_CollateralDependentLoansRealEstateMember_019d2080-cd58-7752-8bea-ff4db1acf07a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CollateralDependentLoansBusinessAssetsMember_019d2080-cd58-7e97-a497-092a5a5fa0a9" xlink:href="lob-20260331.xsd#lob_CollateralDependentLoansBusinessAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:to="loc_lob_CollateralDependentLoansBusinessAssetsMember_019d2080-cd58-7e97-a497-092a5a5fa0a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedPortionRealEstateMember_019d2080-cd58-70b9-8285-78a3d86d4378" xlink:href="lob-20260331.xsd#lob_UnguaranteedPortionRealEstateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:to="loc_lob_UnguaranteedPortionRealEstateMember_019d2080-cd58-70b9-8285-78a3d86d4378" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedPortionBusinessAssetsMember_019d2080-cd58-7b1d-b4e9-e28f4acb9f22" xlink:href="lob-20260331.xsd#lob_UnguaranteedPortionBusinessAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:to="loc_lob_UnguaranteedPortionBusinessAssetsMember_019d2080-cd58-7b1d-b4e9-e28f4acb9f22" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_UnguaranteedPortionMember_019d2080-cd58-7137-acf3-0d287c6e679c" xlink:href="lob-20260331.xsd#lob_UnguaranteedPortionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_019d2080-cd58-7344-b3cf-8a2d5bb42f41" xlink:to="loc_lob_UnguaranteedPortionMember_019d2080-cd58-7137-acf3-0d287c6e679c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7941-a2fa-805fda0d36f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019d2080-cd58-7bd0-84ee-951467a6bba8" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7941-a2fa-805fda0d36f5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7941-a2fa-805fda0d36f5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7941-a2fa-805fda0d36f5" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7941-a2fa-805fda0d36f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7a6a-8343-081f560f0e69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7941-a2fa-805fda0d36f5" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7a6a-8343-081f560f0e69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-73ba-b328-51ecf39060cf" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7a6a-8343-081f560f0e69" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-73ba-b328-51ecf39060cf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7a09-871d-842aeab7b07b" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7a6a-8343-081f560f0e69" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7a09-871d-842aeab7b07b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansAndLeasesReceivableAtAmortizedCost_019d2080-cd58-7120-a8d2-0e8479160a78" xlink:href="lob-20260331.xsd#lob_LoansAndLeasesReceivableAtAmortizedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-710b-bf56-c9d80897bfee" xlink:to="loc_lob_LoansAndLeasesReceivableAtAmortizedCost_019d2080-cd58-7120-a8d2-0e8479160a78" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019d2080-cd58-7955-afdc-fdf9ae54c938" 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_FinancingReceivableRecordedInvestmentPastDueLineItems_019d2080-cd58-710b-bf56-c9d80897bfee" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019d2080-cd58-7955-afdc-fdf9ae54c938" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofActivityintheAllowanceforCreditLossesACLbyPortfolioSegmentDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofActivityintheAllowanceforCreditLossesACLbyPortfolioSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofActivityintheAllowanceforCreditLossesACLbyPortfolioSegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d2080-cd58-7224-85f3-081f07c937cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019d2080-cd58-7ede-9fc0-b3b48df04424" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019d2080-cd58-7224-85f3-081f07c937cb" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019d2080-cd58-7ede-9fc0-b3b48df04424" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-74d9-8022-1fec61c6d087" 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_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019d2080-cd58-7ede-9fc0-b3b48df04424" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019d2080-cd58-74d9-8022-1fec61c6d087" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-74d9-8022-1fec61c6d087_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_019d2080-cd58-74d9-8022-1fec61c6d087" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-74d9-8022-1fec61c6d087_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" 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_019d2080-cd58-74d9-8022-1fec61c6d087" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-76ec-80b6-40adfcb093d7" xlink:href="lob-20260331.xsd#lob_CommercialAndIndustrialPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" xlink:to="loc_lob_CommercialAndIndustrialPortfolioSegmentMember_019d2080-cd58-76ec-80b6-40adfcb093d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7f39-b00f-072a70e4615e" xlink:href="lob-20260331.xsd#lob_ConstructionAndDevelopmentPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" xlink:to="loc_lob_ConstructionAndDevelopmentPortfolioSegmentMember_019d2080-cd58-7f39-b00f-072a70e4615e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7523-aed4-095cd09926ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialRealEstatePortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" xlink:to="loc_us-gaap_CommercialRealEstatePortfolioSegmentMember_019d2080-cd58-7523-aed4-095cd09926ef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7fd5-b69e-674e81f5e9ea" xlink:href="lob-20260331.xsd#lob_CommercialLandPortfolioSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019d2080-cd58-76ff-b450-1a76ab4b4567" xlink:to="loc_lob_CommercialLandPortfolioSegmentMember_019d2080-cd58-7fd5-b69e-674e81f5e9ea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" 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_FinancingReceivableAllowanceForCreditLossesLineItems_019d2080-cd58-7224-85f3-081f07c937cb" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019d2080-cd58-7713-970e-8ed2cf8d5fd3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019d2080-cd58-7713-970e-8ed2cf8d5fd3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff_019d2080-cd58-71cc-ba99-490fb4f797d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff_019d2080-cd58-71cc-ba99-490fb4f797d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery_019d2080-cd58-7941-bc5f-038330a351d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery_019d2080-cd58-7941-bc5f-038330a351d7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_019d2080-cd58-725b-82a9-0cbfef1f3b57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019d2080-cd58-7909-bbd9-15ad609af576" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_019d2080-cd58-725b-82a9-0cbfef1f3b57" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019d2080-cd58-768c-9c3d-790f1a6da815" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoanModificationsforBorrowersExperiencingFinancialDifficultyDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoanModificationsforBorrowersExperiencingFinancialDifficultyDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoanModificationsforBorrowersExperiencingFinancialDifficultyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-78eb-b223-f48ed8d734db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7984-b0e0-30cc64911fd3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-78eb-b223-f48ed8d734db" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7984-b0e0-30cc64911fd3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-75fb-8f22-d80855e055b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7984-b0e0-30cc64911fd3" xlink:to="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-75fb-8f22-d80855e055b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-75fb-8f22-d80855e055b2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-75fb-8f22-d80855e055b2" xlink:to="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-75fb-8f22-d80855e055b2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-75fb-8f22-d80855e055b2" xlink:to="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentDeferralMember_019d2080-cd58-7648-89d8-6c1d39b669c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentDeferralMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_us-gaap_PaymentDeferralMember_019d2080-cd58-7648-89d8-6c1d39b669c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtendedMaturityMember_019d2080-cd58-7026-a98e-ecf989cd924e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExtendedMaturityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_us-gaap_ExtendedMaturityMember_019d2080-cd58-7026-a98e-ecf989cd924e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualInterestRateReductionMember_019d2080-cd58-7295-9e5f-08dd4e057c57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualInterestRateReductionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_us-gaap_ContractualInterestRateReductionMember_019d2080-cd58-7295-9e5f-08dd4e057c57" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_PaymentDelayAndInterestRateReductionMember_019d2080-cd58-7a73-80c7-429477eca47e" xlink:href="lob-20260331.xsd#lob_PaymentDelayAndInterestRateReductionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_lob_PaymentDelayAndInterestRateReductionMember_019d2080-cd58-7a73-80c7-429477eca47e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ExtendedMaturityPaymentDelayAndInterestRateReductionMember_019d2080-cd58-7809-99cc-2f32fa9587ff" xlink:href="lob-20260331.xsd#lob_ExtendedMaturityPaymentDelayAndInterestRateReductionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_lob_ExtendedMaturityPaymentDelayAndInterestRateReductionMember_019d2080-cd58-7809-99cc-2f32fa9587ff" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ExtendedMaturityAndPaymentDelayMember_019d2080-cd58-7496-a205-a1cc58c21ca7" xlink:href="lob-20260331.xsd#lob_ExtendedMaturityAndPaymentDelayMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_lob_ExtendedMaturityAndPaymentDelayMember_019d2080-cd58-7496-a205-a1cc58c21ca7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtendedMaturityAndInterestRateReductionMember_019d2080-cd58-7ed5-8237-caea3b19191b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExtendedMaturityAndInterestRateReductionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7669-9738-0945600295a5" xlink:to="loc_us-gaap_ExtendedMaturityAndInterestRateReductionMember_019d2080-cd58-7ed5-8237-caea3b19191b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-742b-a124-e897049ab7e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7984-b0e0-30cc64911fd3" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-742b-a124-e897049ab7e5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-742b-a124-e897049ab7e5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-742b-a124-e897049ab7e5" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-742b-a124-e897049ab7e5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7243-b9cc-cf26470f05dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-742b-a124-e897049ab7e5" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7243-b9cc-cf26470f05dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-784d-99ea-8b0c827d1054" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7243-b9cc-cf26470f05dd" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-784d-99ea-8b0c827d1054" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-77e7-8b64-46ddcf0fb8d8" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7243-b9cc-cf26470f05dd" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-77e7-8b64-46ddcf0fb8d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod_019d2080-cd58-7734-ad85-d6eb535c9418" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-78eb-b223-f48ed8d734db" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod_019d2080-cd58-7734-ad85-d6eb535c9418" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent_019d2080-cd58-7f62-84d5-bc8d6ed3c0f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-78eb-b223-f48ed8d734db" xlink:to="loc_us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent_019d2080-cd58-7f62-84d5-bc8d6ed3c0f7" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityAgingAnalysisOfLoansThatWereModifiedDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityAgingAnalysisOfLoansThatWereModifiedDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityAgingAnalysisOfLoansThatWereModifiedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7e3d-a208-6d1f6ed184e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-731c-8c03-977fe832ac1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7e3d-a208-6d1f6ed184e5" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-731c-8c03-977fe832ac1f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7071-86cb-de7b40ad6028" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-731c-8c03-977fe832ac1f" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7071-86cb-de7b40ad6028" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7071-86cb-de7b40ad6028_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7071-86cb-de7b40ad6028" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7071-86cb-de7b40ad6028_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7fc7-aea9-4872b856f059" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-7071-86cb-de7b40ad6028" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7fc7-aea9-4872b856f059" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7152-b7a0-8d3d67392753" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7fc7-aea9-4872b856f059" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7152-b7a0-8d3d67392753" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7651-b8e2-3fea90eeb9c5" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-7fc7-aea9-4872b856f059" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-7651-b8e2-3fea90eeb9c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019d2080-cd58-7d43-9c65-59e7d50aa433" 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_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-731c-8c03-977fe832ac1f" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019d2080-cd58-7d43-9c65-59e7d50aa433" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7d43-9c65-59e7d50aa433_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_019d2080-cd58-7d43-9c65-59e7d50aa433" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-7d43-9c65-59e7d50aa433_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-75dc-b50c-d56afebf58f3" 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_019d2080-cd58-7d43-9c65-59e7d50aa433" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019d2080-cd58-75dc-b50c-d56afebf58f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-705c-83bd-2474a633b4cf" 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_019d2080-cd58-75dc-b50c-d56afebf58f3" xlink:to="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-705c-83bd-2474a633b4cf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019d2080-cd58-7c96-b064-facf433a4540" 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_FinancialAssetPastDueMember_019d2080-cd58-705c-83bd-2474a633b4cf" xlink:to="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019d2080-cd58-7c96-b064-facf433a4540" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FinancialAsset30To89DaysPastDueMember_019d2080-cd58-7134-bfde-973f4c6a7de8" xlink:href="lob-20260331.xsd#lob_FinancialAsset30To89DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-705c-83bd-2474a633b4cf" xlink:to="loc_lob_FinancialAsset30To89DaysPastDueMember_019d2080-cd58-7134-bfde-973f4c6a7de8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_019d2080-cd58-7cea-b43b-6af5c0674cde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialAssetPastDueMember_019d2080-cd58-705c-83bd-2474a633b4cf" xlink:to="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_019d2080-cd58-7cea-b43b-6af5c0674cde" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod_019d2080-cd58-786c-8863-def7cc8c4e94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7e3d-a208-6d1f6ed184e5" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod_019d2080-cd58-786c-8863-def7cc8c4e94" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofFinancialEffectofLoanModificationsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofFinancialEffectofLoanModificationsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofFinancialEffectofLoanModificationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-74f9-af60-fed84393a079" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7e41-9ef0-7980025942f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-74f9-af60-fed84393a079" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7e41-9ef0-7980025942f8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesByIndustryAxis_019d2080-cd58-7b32-9874-9f3f4a92a01e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesByIndustryAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_019d2080-cd58-7e41-9ef0-7980025942f8" xlink:to="loc_us-gaap_EquitySecuritiesByIndustryAxis_019d2080-cd58-7b32-9874-9f3f4a92a01e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesIndustryMember_019d2080-cd58-7b32-9874-9f3f4a92a01e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesIndustryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EquitySecuritiesByIndustryAxis_019d2080-cd58-7b32-9874-9f3f4a92a01e" xlink:to="loc_us-gaap_EquitySecuritiesIndustryMember_019d2080-cd58-7b32-9874-9f3f4a92a01e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesIndustryMember_019d2080-cd58-7404-90e6-6274792a0b43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesIndustryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EquitySecuritiesByIndustryAxis_019d2080-cd58-7b32-9874-9f3f4a92a01e" xlink:to="loc_us-gaap_EquitySecuritiesIndustryMember_019d2080-cd58-7404-90e6-6274792a0b43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7c6e-9e00-9d479a294f8e" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019d2080-cd58-7404-90e6-6274792a0b43" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-7c6e-9e00-9d479a294f8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification_019d2080-cd58-7a31-b621-e9a8f6b85c27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-74f9-af60-fed84393a079" xlink:to="loc_us-gaap_FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification_019d2080-cd58-7a31-b621-e9a8f6b85c27" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification_019d2080-cd58-7094-8955-0780b3087755" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-74f9-af60-fed84393a079" xlink:to="loc_us-gaap_FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification_019d2080-cd58-7094-8955-0780b3087755" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoansModifiedandSubsequentlyDefaultedDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoansModifiedandSubsequentlyDefaultedDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/LoansandLeasesHeldforInvestmentandCreditQualityScheduleofLoansModifiedandSubsequentlyDefaultedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7783-89b6-b6be28df7abb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModifiedSubsequentDefaultTable_019d2080-cd58-756a-94b3-5415eb6b2694" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModifiedSubsequentDefaultTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7783-89b6-b6be28df7abb" xlink:to="loc_us-gaap_FinancingReceivableModifiedSubsequentDefaultTable_019d2080-cd58-756a-94b3-5415eb6b2694" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-765d-842d-18430267499d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FinancingReceivableModifiedSubsequentDefaultTable_019d2080-cd58-756a-94b3-5415eb6b2694" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-765d-842d-18430267499d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-765d-842d-18430267499d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-765d-842d-18430267499d" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-765d-842d-18430267499d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-76cd-82a8-2f264d8d979a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_019d2080-cd58-765d-842d-18430267499d" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-76cd-82a8-2f264d8d979a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-76fd-b86c-73b64fe583d5" xlink:href="lob-20260331.xsd#lob_SmallBusinessBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-76cd-82a8-2f264d8d979a" xlink:to="loc_lob_SmallBusinessBankingSectorMember_019d2080-cd58-76fd-b86c-73b64fe583d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommercialBankingSectorMember_019d2080-cd58-771b-bc0f-960f0fde7ab7" xlink:href="lob-20260331.xsd#lob_CommercialBankingSectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_019d2080-cd58-76cd-82a8-2f264d8d979a" xlink:to="loc_lob_CommercialBankingSectorMember_019d2080-cd58-771b-bc0f-960f0fde7ab7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-778f-bb98-8b9cab2bc3be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FinancingReceivableModifiedSubsequentDefaultTable_019d2080-cd58-756a-94b3-5415eb6b2694" xlink:to="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-778f-bb98-8b9cab2bc3be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-778f-bb98-8b9cab2bc3be_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-778f-bb98-8b9cab2bc3be" xlink:to="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-778f-bb98-8b9cab2bc3be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7d7e-b0aa-967adca31121" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoanRestructuringModificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LoanRestructuringModificationAxis_019d2080-cd58-778f-bb98-8b9cab2bc3be" xlink:to="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7d7e-b0aa-967adca31121" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentDeferralMember_019d2080-cd58-7e1d-843b-7e42345ef532" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentDeferralMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7d7e-b0aa-967adca31121" xlink:to="loc_us-gaap_PaymentDeferralMember_019d2080-cd58-7e1d-843b-7e42345ef532" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtendedMaturityMember_019d2080-cd58-7549-990e-12153bdb9c96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ExtendedMaturityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7d7e-b0aa-967adca31121" xlink:to="loc_us-gaap_ExtendedMaturityMember_019d2080-cd58-7549-990e-12153bdb9c96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualInterestRateReductionMember_019db072-9aa5-7214-8de8-f571968315b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualInterestRateReductionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoanRestructuringModificationDomain_019d2080-cd58-7d7e-b0aa-967adca31121" xlink:to="loc_us-gaap_ContractualInterestRateReductionMember_019db072-9aa5-7214-8de8-f571968315b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_019d2080-cd58-71e9-8947-bb0ca203f86c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_019d2080-cd58-7783-89b6-b6be28df7abb" xlink:to="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_019d2080-cd58-71e9-8947-bb0ca203f86c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/ServicingAssetsNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#ServicingAssetsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/ServicingAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetsAtFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetsAtFairValueTable_019cba0a-9cab-7727-9ec9-48f4712764a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetsAtFairValueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_ServicingAssetsAtFairValueTable_019cba0a-9cab-7727-9ec9-48f4712764a5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019cba0a-9cab-7f35-9ac9-7f5c7dba848b" 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_ServicingAssetsAtFairValueTable_019cba0a-9cab-7727-9ec9-48f4712764a5" xlink:to="loc_srt_RangeAxis_019cba0a-9cab-7f35-9ac9-7f5c7dba848b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019cba0a-9cab-7f35-9ac9-7f5c7dba848b_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_019cba0a-9cab-7f35-9ac9-7f5c7dba848b" xlink:to="loc_srt_RangeMember_019cba0a-9cab-7f35-9ac9-7f5c7dba848b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019cba0a-9cab-773e-a065-e893c20fa5de" 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_019cba0a-9cab-7f35-9ac9-7f5c7dba848b" xlink:to="loc_srt_RangeMember_019cba0a-9cab-773e-a065-e893c20fa5de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019cba0a-9cab-7742-be2f-579d813e625c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_WeightedAverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019cba0a-9cab-773e-a065-e893c20fa5de" xlink:to="loc_srt_WeightedAverageMember_019cba0a-9cab-7742-be2f-579d813e625c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueTable_019cba0a-9cab-7727-9ec9-48f4712764a5" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-72a8-be52-478572a78ae1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7a96-8ff2-1f50f4ec21bf" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-72a8-be52-478572a78ae1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialLoanMember_019cba0a-9cab-7274-bd25-d47e795355d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommercialLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-72a8-be52-478572a78ae1" xlink:to="loc_us-gaap_CommercialLoanMember_019cba0a-9cab-7274-bd25-d47e795355d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrincipalAmountOutstandingOnLoansManagedAndSecuritized_019cba0a-9cab-764a-a357-f8238477eb2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrincipalAmountOutstandingOnLoansManagedAndSecuritized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_PrincipalAmountOutstandingOnLoansManagedAndSecuritized_019cba0a-9cab-764a-a357-f8238477eb2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_019cba0a-9cab-7757-9c05-488c2f26249c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_019cba0a-9cab-7757-9c05-488c2f26249c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate_019cba0a-9cab-7288-a809-4d4641ea0035" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate_019cba0a-9cab-7288-a809-4d4641ea0035" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed_019cba0a-9cab-7c7e-8b14-d3bae388131d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed_019cba0a-9cab-7c7e-8b14-d3bae388131d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetAtAmortizedValue_019cba0a-9cab-7453-b06a-563f3a9d037c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetAtAmortizedValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ServicingAssetsAtFairValueLineItems_019cba0a-9cab-7a09-878c-e1f7069123d8" xlink:to="loc_us-gaap_ServicingAssetAtAmortizedValue_019cba0a-9cab-7453-b06a-563f3a9d037c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-711d-881c-2dc1c3c9b232" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-711d-881c-2dc1c3c9b232" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7f11-b20b-9007eb932c82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-711d-881c-2dc1c3c9b232" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7f11-b20b-9007eb932c82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7f11-b20b-9007eb932c82_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7f11-b20b-9007eb932c82" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7f11-b20b-9007eb932c82_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-70c8-bd5e-ec0cfc3c45dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7f11-b20b-9007eb932c82" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-70c8-bd5e-ec0cfc3c45dc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019d2011-21e0-7bcd-be46-89c02fe232f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-70c8-bd5e-ec0cfc3c45dc" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019d2011-21e0-7bcd-be46-89c02fe232f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019d2011-21e0-70fa-85f8-b47ce02ebf66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-711d-881c-2dc1c3c9b232" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019d2011-21e0-70fa-85f8-b47ce02ebf66" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-70fa-85f8-b47ce02ebf66_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d2011-21e0-70fa-85f8-b47ce02ebf66" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-70fa-85f8-b47ce02ebf66_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019d2011-21e0-70fa-85f8-b47ce02ebf66" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d2011-21e0-7b05-88ea-98adad9d4917" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_019d2011-21e0-7b05-88ea-98adad9d4917" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_019d2011-21e0-7d8c-b274-161e6f45d6b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageBackedSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_019d2011-21e0-7d8c-b274-161e6f45d6b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d2011-21e0-7eb7-8a8b-2d64a106ecfd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:to="loc_us-gaap_MunicipalBondsMember_019d2011-21e0-7eb7-8a8b-2d64a106ecfd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MutualFundMember_019d2011-21e0-76ea-bd50-ef2066826e79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MutualFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019d2011-21e0-7220-a0b5-7b617d700583" xlink:to="loc_us-gaap_MutualFundMember_019d2011-21e0-76ea-bd50-ef2066826e79" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-743b-b401-1dfe27bb8b48" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-711d-881c-2dc1c3c9b232" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-743b-b401-1dfe27bb8b48" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-743b-b401-1dfe27bb8b48_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_019d2011-21e0-743b-b401-1dfe27bb8b48" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-743b-b401-1dfe27bb8b48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-78ab-b875-590980b95191" 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_019d2011-21e0-743b-b401-1dfe27bb8b48" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-78ab-b875-590980b95191" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-7ea2-b28a-adc4a0bd926b" 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_019d2011-21e0-78ab-b875-590980b95191" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-7ea2-b28a-adc4a0bd926b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7f3b-83b4-c1b1b2167ee2" 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_019d2011-21e0-78ab-b875-590980b95191" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7f3b-83b4-c1b1b2167ee2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-756b-afce-bec769581b94" 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_019d2011-21e0-78ab-b875-590980b95191" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-756b-afce-bec769581b94" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d2011-21e0-77f8-a32e-da33dd20f188" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_019d2011-21e0-77f8-a32e-da33dd20f188" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_019d2011-21e0-7b88-aa25-2bcabbe30e52" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_019d2011-21e0-7b88-aa25-2bcabbe30e52" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetAtFairValueAmount_019d2011-21e0-76f7-9cc5-fa9995778fba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetAtFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_ServicingAssetAtFairValueAmount_019d2011-21e0-76f7-9cc5-fa9995778fba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_019d2011-21e0-7d48-9319-cad5e1489a23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_019d2011-21e0-7d48-9319-cad5e1489a23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_EquityWarrantAssetsFairValueDisclosure_019d2011-21e0-7a31-a820-579a90bcd5d2" xlink:href="lob-20260331.xsd#lob_EquityWarrantAssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_lob_EquityWarrantAssetsFairValueDisclosure_019d2011-21e0-7a31-a820-579a90bcd5d2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-78b6-ab1f-19121da48d63" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7839-b582-0f6627cbb718" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-78b6-ab1f-19121da48d63" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofFairValueCarryingAmountandUnpaidPrincipalOutstandingofLoansUnderFairValueOptionDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofFairValueCarryingAmountandUnpaidPrincipalOutstandingofLoansUnderFairValueOptionDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofFairValueCarryingAmountandUnpaidPrincipalOutstandingofLoansUnderFairValueOptionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-73eb-8d7f-82dfe137aece" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-73eb-8d7f-82dfe137aece" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-71ab-a2c5-1a2b662355a9" 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_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-73eb-8d7f-82dfe137aece" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-71ab-a2c5-1a2b662355a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-71ab-a2c5-1a2b662355a9_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_019d2011-21e0-71ab-a2c5-1a2b662355a9" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-71ab-a2c5-1a2b662355a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7230-9713-714ec785f5d2" 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_019d2011-21e0-71ab-a2c5-1a2b662355a9" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7230-9713-714ec785f5d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-77cf-aecd-9e10cf511b1a" xlink:href="lob-20260331.xsd#lob_LoansHeldForInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7230-9713-714ec785f5d2" xlink:to="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-77cf-aecd-9e10cf511b1a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionIneligibleItemsAggregateCarryingAmount_019d2011-21e0-7664-a2e0-472e7570521d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionIneligibleItemsAggregateCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionIneligibleItemsAggregateCarryingAmount_019d2011-21e0-7664-a2e0-472e7570521d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FairValueOptionLoansUnpaidPrincipalBalance_019d2011-21e0-7903-b9bb-1ed5abb9bcf1" xlink:href="lob-20260331.xsd#lob_FairValueOptionLoansUnpaidPrincipalBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_lob_FairValueOptionLoansUnpaidPrincipalBalance_019d2011-21e0-7903-b9bb-1ed5abb9bcf1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables_019d2011-21e0-741c-a0f9-0a9ab6677d40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables_019d2011-21e0-741c-a0f9-0a9ab6677d40" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatus_019d2011-21e0-71a2-9b6c-a25ec2cbb2e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatus_019d2011-21e0-71a2-9b6c-a25ec2cbb2e4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusUnpaidPrincipalBalance_019d2011-21e0-7ad3-86fa-a99ace7a4d4c" xlink:href="lob-20260331.xsd#lob_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusUnpaidPrincipalBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_lob_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusUnpaidPrincipalBalance_019d2011-21e0-7ad3-86fa-a99ace7a4d4c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAggregatedDifference_019d2011-21e0-70ee-a2b9-3cb097804778" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAggregatedDifference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAggregatedDifference_019d2011-21e0-70ee-a2b9-3cb097804778" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue_019d2011-21e0-714b-bd34-50da1934f7da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue_019d2011-21e0-714b-bd34-50da1934f7da" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueUnpaidPrincipalBalance_019d2011-21e0-7012-87e5-daaab93766ff" xlink:href="lob-20260331.xsd#lob_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueUnpaidPrincipalBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_lob_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueUnpaidPrincipalBalance_019d2011-21e0-7012-87e5-daaab93766ff" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference_019d2011-21e0-7d7f-a437-024e6431013d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-763b-945e-78db28714440" xlink:to="loc_us-gaap_FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference_019d2011-21e0-7d7f-a437-024e6431013d" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofNetLossesFromChangesinFairValueDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofNetLossesFromChangesinFairValueDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofNetLossesFromChangesinFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-7599-a877-cea2f4880dfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-763a-82c3-49890baf692d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-7599-a877-cea2f4880dfe" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-763a-82c3-49890baf692d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-7cb5-ae6d-024d8afff2c2" 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_FairValueOptionQuantitativeDisclosuresTable_019d2011-21e0-763a-82c3-49890baf692d" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-7cb5-ae6d-024d8afff2c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7cb5-ae6d-024d8afff2c2_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_019d2011-21e0-7cb5-ae6d-024d8afff2c2" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7cb5-ae6d-024d8afff2c2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7299-98e5-0c359f7de093" 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_019d2011-21e0-7cb5-ae6d-024d8afff2c2" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7299-98e5-0c359f7de093" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-719c-ae83-e8458e3d2c4c" xlink:href="lob-20260331.xsd#lob_LoansHeldForInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7299-98e5-0c359f7de093" xlink:to="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-719c-ae83-e8458e3d2c4c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_019d2011-21e0-7ce0-ab3d-60a8daf6b67b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_019d2011-21e0-7599-a877-cea2f4880dfe" xlink:to="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_019d2011-21e0-7ce0-ab3d-60a8daf6b67b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleoftheActivityPertainingtoLoansAccountedforUnderFairValueOptionDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleoftheActivityPertainingtoLoansAccountedforUnderFairValueOptionDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleoftheActivityPertainingtoLoansAccountedforUnderFairValueOptionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019d2011-21e0-73fa-af28-326c31e8820a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019d2011-21e0-7168-b109-30e140f7b25f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019d2011-21e0-73fa-af28-326c31e8820a" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019d2011-21e0-7168-b109-30e140f7b25f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-71c7-9fda-99f0f753690b" 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_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019d2011-21e0-7168-b109-30e140f7b25f" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-71c7-9fda-99f0f753690b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-71c7-9fda-99f0f753690b_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_019d2011-21e0-71c7-9fda-99f0f753690b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-71c7-9fda-99f0f753690b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7f77-b470-2db046f9d549" 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_019d2011-21e0-71c7-9fda-99f0f753690b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7f77-b470-2db046f9d549" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-7a70-979c-4ab249d0efbb" xlink:href="lob-20260331.xsd#lob_LoansHeldForInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-7f77-b470-2db046f9d549" xlink:to="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-7a70-979c-4ab249d0efbb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019d2011-21e0-73fa-af28-326c31e8820a" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019d2011-21e0-7577-abad-c142b08e7a54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019d2011-21e0-7577-abad-c142b08e7a54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepurchases_019d2011-21e0-70b7-a8a1-4801e5e0ca72" xlink:href="lob-20260331.xsd#lob_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepurchases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:to="loc_lob_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRepurchases_019d2011-21e0-70b7-a8a1-4801e5e0ca72" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease_019d2011-21e0-7ae5-b648-16f84df37f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease_019d2011-21e0-7ae5-b648-16f84df37f1b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_019d2011-21e0-712d-b336-bc6dcb574a99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019d2011-21e0-703b-8a31-c5f36d6938fb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_019d2011-21e0-712d-b336-bc6dcb574a99" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019d2011-21e0-7863-af0e-313cb67e704f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaNonRecurringBasisDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaNonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofRecordedAmountofAssetsandLiabilitiesMeasuredatFairValueonaNonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-7c0e-a031-384f923e9a17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-7c0e-a031-384f923e9a17" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-725c-9f89-8bf0aa1f4d5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-7c0e-a031-384f923e9a17" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-725c-9f89-8bf0aa1f4d5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-725c-9f89-8bf0aa1f4d5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-725c-9f89-8bf0aa1f4d5f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-725c-9f89-8bf0aa1f4d5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7641-a53a-9f69f708db64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-725c-9f89-8bf0aa1f4d5f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7641-a53a-9f69f708db64" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019d2011-21e0-74a3-88b6-eaead91b3b3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7641-a53a-9f69f708db64" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019d2011-21e0-74a3-88b6-eaead91b3b3e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-762f-aa2d-378c58fdacdb" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019d2011-21e0-7c0e-a031-384f923e9a17" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-762f-aa2d-378c58fdacdb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-762f-aa2d-378c58fdacdb_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_019d2011-21e0-762f-aa2d-378c58fdacdb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-762f-aa2d-378c58fdacdb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-798b-857f-57059e99b9c9" 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_019d2011-21e0-762f-aa2d-378c58fdacdb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-798b-857f-57059e99b9c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-7e78-84c4-fd389a41ab5d" 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_019d2011-21e0-798b-857f-57059e99b9c9" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-7e78-84c4-fd389a41ab5d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7634-b50c-236dd2c6ac47" 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_019d2011-21e0-798b-857f-57059e99b9c9" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7634-b50c-236dd2c6ac47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-774a-9387-54638876eb82" 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_019d2011-21e0-798b-857f-57059e99b9c9" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-774a-9387-54638876eb82" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CollateralDependentLoansFairValueDisclosure_019d2011-21e0-7026-a06b-309bd0fcad29" xlink:href="lob-20260331.xsd#lob_CollateralDependentLoansFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:to="loc_lob_CollateralDependentLoansFairValueDisclosure_019d2011-21e0-7026-a06b-309bd0fcad29" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeclosedAssets_019d2011-21e0-75dd-8d4c-2d16db4a26cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeclosedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:to="loc_us-gaap_ForeclosedAssets_019d2011-21e0-75dd-8d4c-2d16db4a26cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecurityOwnedNotReadilyMarketableFairValue_019d2011-21e0-7b5c-a2aa-538c0199f8b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecurityOwnedNotReadilyMarketableFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:to="loc_us-gaap_SecurityOwnedNotReadilyMarketableFairValue_019d2011-21e0-7b5c-a2aa-538c0199f8b6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-7f6c-a259-8682eaa98024" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019d2011-21e0-7918-90d5-6b917fa886cd" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-7f6c-a259-8682eaa98024" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofAnalysisofLevel3ValuationTechniquesDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofAnalysisofLevel3ValuationTechniquesDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofAnalysisofLevel3ValuationTechniquesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-7e8e-ad59-dd94351b57fd" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-7e8e-ad59-dd94351b57fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7e8e-ad59-dd94351b57fd_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_019d2011-21e0-7e8e-ad59-dd94351b57fd" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7e8e-ad59-dd94351b57fd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7313-959d-c8a788c4fc50" 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_019d2011-21e0-7e8e-ad59-dd94351b57fd" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7313-959d-c8a788c4fc50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-7190-8790-2f00f00ecad6" 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_019d2011-21e0-7313-959d-c8a788c4fc50" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-7190-8790-2f00f00ecad6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7108-b79a-8bbcf61d94e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7108-b79a-8bbcf61d94e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7108-b79a-8bbcf61d94e8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7108-b79a-8bbcf61d94e8" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7108-b79a-8bbcf61d94e8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7ef2-8073-a72a741a4958" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019d2011-21e0-7108-b79a-8bbcf61d94e8" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7ef2-8073-a72a741a4958" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019d2011-21e0-7576-a3e0-30fa3afaf814" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7ef2-8073-a72a741a4958" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019d2011-21e0-7576-a3e0-30fa3afaf814" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019d2011-21e0-7b14-88f7-35738e8cf390" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019d2011-21e0-7ef2-8073-a72a741a4958" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019d2011-21e0-7b14-88f7-35738e8cf390" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d2011-21e0-713e-9f8e-c477598461cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d2011-21e0-713e-9f8e-c477598461cb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d2011-21e0-713e-9f8e-c477598461cb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d2011-21e0-713e-9f8e-c477598461cb" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d2011-21e0-713e-9f8e-c477598461cb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d2011-21e0-7e7b-ae7d-c2fd7279e588" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d2011-21e0-713e-9f8e-c477598461cb" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d2011-21e0-7e7b-ae7d-c2fd7279e588" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MunicipalBondsMember_019d2011-21e0-7afc-8c0a-f3256887c91e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MunicipalBondsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d2011-21e0-7e7b-ae7d-c2fd7279e588" xlink:to="loc_us-gaap_MunicipalBondsMember_019d2011-21e0-7afc-8c0a-f3256887c91e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-718c-9fd0-82f542da5c75" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019d2011-21e0-718c-9fd0-82f542da5c75" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-718c-9fd0-82f542da5c75_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_019d2011-21e0-718c-9fd0-82f542da5c75" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-718c-9fd0-82f542da5c75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" 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_019d2011-21e0-718c-9fd0-82f542da5c75" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-7bd8-967b-46ec4c725dd0" xlink:href="lob-20260331.xsd#lob_LoansHeldForInvestmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" xlink:to="loc_lob_LoansHeldForInvestmentMember_019d2011-21e0-7bd8-967b-46ec4c725dd0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_EquityWarrantAssetsMember_019d2011-21e0-7b9b-9098-02b8a39ac2b4" xlink:href="lob-20260331.xsd#lob_EquityWarrantAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" xlink:to="loc_lob_EquityWarrantAssetsMember_019d2011-21e0-7b9b-9098-02b8a39ac2b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CollateralDependentLoansMember_019d2011-21e0-79ad-add1-70358737549c" xlink:href="lob-20260331.xsd#lob_CollateralDependentLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" xlink:to="loc_lob_CollateralDependentLoansMember_019d2011-21e0-79ad-add1-70358737549c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ForeclosedAssetsMember_019d2011-21e0-7f86-be1a-56b1fa8bfe10" xlink:href="lob-20260331.xsd#lob_ForeclosedAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019d2011-21e0-70b4-b6c7-39f43c79f94b" xlink:to="loc_lob_ForeclosedAssetsMember_019d2011-21e0-7f86-be1a-56b1fa8bfe10" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_019d2011-21e0-76fa-bd56-edf591b1da44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_019d2011-21e0-76fa-bd56-edf591b1da44" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-76fa-bd56-edf591b1da44_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019d2011-21e0-76fa-bd56-edf591b1da44" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-76fa-bd56-edf591b1da44_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019d2011-21e0-76fa-bd56-edf591b1da44" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputDiscountRateMember_019d2011-21e0-7979-bf45-302011f2c40a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputDiscountRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputDiscountRateMember_019d2011-21e0-7979-bf45-302011f2c40a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPrepaymentRateMember_019d2011-21e0-7180-a42c-a543344ff0fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputPrepaymentRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputPrepaymentRateMember_019d2011-21e0-7180-a42c-a543344ff0fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputLossSeverityMember_019d2011-21e0-7448-9b55-307073865d17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputLossSeverityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputLossSeverityMember_019d2011-21e0-7448-9b55-307073865d17" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_019d2011-21e0-7082-bc38-69aaba73bb40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_019d2011-21e0-7082-bc38-69aaba73bb40" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019d2011-21e0-7ef5-a739-1358878de069" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019d2011-21e0-7ef5-a739-1358878de069" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_019d2011-21e0-76f6-86e7-e84993d60f81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_019d2011-21e0-76f6-86e7-e84993d60f81" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRevenueMultipleMember_019d2011-21e0-766c-85bf-63e889c232b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MeasurementInputRevenueMultipleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019d2011-21e0-7496-b1ee-bebd3055c015" xlink:to="loc_us-gaap_MeasurementInputRevenueMultipleMember_019d2011-21e0-766c-85bf-63e889c232b3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueAxis_019d2011-21e0-747a-a14e-bc72dc7525a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationTechniqueAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_us-gaap_ValuationTechniqueAxis_019d2011-21e0-747a-a14e-bc72dc7525a7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-747a-a14e-bc72dc7525a7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationTechniqueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ValuationTechniqueAxis_019d2011-21e0-747a-a14e-bc72dc7525a7" xlink:to="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-747a-a14e-bc72dc7525a7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-7793-b264-946321d20c44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationTechniqueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ValuationTechniqueAxis_019d2011-21e0-747a-a14e-bc72dc7525a7" xlink:to="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-7793-b264-946321d20c44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDiscountedCashFlowMember_019d2011-21e0-78de-84f7-72ff9f06fa8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationTechniqueDiscountedCashFlowMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-7793-b264-946321d20c44" xlink:to="loc_us-gaap_ValuationTechniqueDiscountedCashFlowMember_019d2011-21e0-78de-84f7-72ff9f06fa8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueOptionPricingModelMember_019d2011-21e0-7a78-bbeb-5db618717fef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationTechniqueOptionPricingModelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-7793-b264-946321d20c44" xlink:to="loc_us-gaap_ValuationTechniqueOptionPricingModelMember_019d2011-21e0-7a78-bbeb-5db618717fef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketApproachValuationTechniqueMember_019d2011-21e0-753d-8c6b-943c3878dd96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MarketApproachValuationTechniqueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019d2011-21e0-7793-b264-946321d20c44" xlink:to="loc_us-gaap_MarketApproachValuationTechniqueMember_019d2011-21e0-753d-8c6b-943c3878dd96" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d2011-21e0-7e3a-816e-9a8f7a88363a" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019d2011-21e0-7da0-a3ca-2e2502a4238b" xlink:to="loc_srt_RangeAxis_019d2011-21e0-7e3a-816e-9a8f7a88363a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d2011-21e0-7e3a-816e-9a8f7a88363a_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_019d2011-21e0-7e3a-816e-9a8f7a88363a" xlink:to="loc_srt_RangeMember_019d2011-21e0-7e3a-816e-9a8f7a88363a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d2011-21e0-7209-8d4b-81ca3304d20d" 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_019d2011-21e0-7e3a-816e-9a8f7a88363a" xlink:to="loc_srt_RangeMember_019d2011-21e0-7209-8d4b-81ca3304d20d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d2011-21e0-7730-9704-e7e097a29bf6" 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_019d2011-21e0-7209-8d4b-81ca3304d20d" xlink:to="loc_srt_MinimumMember_019d2011-21e0-7730-9704-e7e097a29bf6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d2011-21e0-7695-a720-f1f91e14b918" 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_019d2011-21e0-7209-8d4b-81ca3304d20d" xlink:to="loc_srt_MaximumMember_019d2011-21e0-7695-a720-f1f91e14b918" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019d2011-21e0-71f7-8cd1-74f2f7cfa1a3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_WeightedAverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d2011-21e0-7209-8d4b-81ca3304d20d" xlink:to="loc_srt_WeightedAverageMember_019d2011-21e0-71f7-8cd1-74f2f7cfa1a3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-7e18-9d23-3cfc794a7046" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019d2011-21e0-7e18-9d23-3cfc794a7046" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput_019d2011-21e0-75d7-aa36-14445fb906c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput_019d2011-21e0-75d7-aa36-14445fb906c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_LoansHeldForInvestmentMeasurementInput_019d2011-21e0-71ea-8348-258292194838" xlink:href="lob-20260331.xsd#lob_LoansHeldForInvestmentMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_lob_LoansHeldForInvestmentMeasurementInput_019d2011-21e0-71ea-8348-258292194838" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetAtFairValueAmount_019d2011-21e0-7870-b3cb-6f76e4cf9a42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetAtFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_ServicingAssetAtFairValueAmount_019d2011-21e0-7870-b3cb-6f76e4cf9a42" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAssetMeasurementInput_019d2011-21e0-79b7-b8b1-937350cccadf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAssetMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_ServicingAssetMeasurementInput_019d2011-21e0-79b7-b8b1-937350cccadf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019d2011-21e0-754b-9d8b-f0985069a42c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019d2011-21e0-754b-9d8b-f0985069a42c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019d2011-21e0-738f-b928-d40e2bb58a4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019d2011-21e0-738f-b928-d40e2bb58a4e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CollateralDependentLoansMeasurementInput_019d2011-21e0-7c08-8ccb-1acde47104d5" xlink:href="lob-20260331.xsd#lob_CollateralDependentLoansMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_lob_CollateralDependentLoansMeasurementInput_019d2011-21e0-7c08-8ccb-1acde47104d5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ForeclosedAssetsMeasurementInput_019d2011-21e0-7345-bbcc-6ef6a5cf0f39" xlink:href="lob-20260331.xsd#lob_ForeclosedAssetsMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_lob_ForeclosedAssetsMeasurementInput_019d2011-21e0-7345-bbcc-6ef6a5cf0f39" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecurityOwnedNotReadilyMarketableFairValue_019d2011-21e0-7057-a066-8706c2998ef3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecurityOwnedNotReadilyMarketableFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_us-gaap_SecurityOwnedNotReadilyMarketableFairValue_019d2011-21e0-7057-a066-8706c2998ef3" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SecurityOwnedNotReadilyMarketableMeasurementInput_019d2011-21e0-7f3e-8049-3ceb01b42d3d" xlink:href="lob-20260331.xsd#lob_SecurityOwnedNotReadilyMarketableMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019d2011-21e0-7c01-8b56-0aaeab47c6cf" xlink:to="loc_lob_SecurityOwnedNotReadilyMarketableMeasurementInput_019d2011-21e0-7f3e-8049-3ceb01b42d3d" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#FairValueofFinancialInstrumentsScheduleofCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/FairValueofFinancialInstrumentsScheduleofCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019d2011-21e0-77c9-99a9-fa93530137a1" 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_019d2011-21e0-74f1-90d4-bb429463c564" 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_019d2011-21e0-77c9-99a9-fa93530137a1" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019d2011-21e0-74f1-90d4-bb429463c564" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019d2011-21e0-727d-9c2f-7d29211cbe6b" 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_019d2011-21e0-74f1-90d4-bb429463c564" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019d2011-21e0-727d-9c2f-7d29211cbe6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019d2011-21e0-727d-9c2f-7d29211cbe6b_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_019d2011-21e0-727d-9c2f-7d29211cbe6b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019d2011-21e0-727d-9c2f-7d29211cbe6b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019d2011-21e0-7c4d-851d-5ece93a6227e" 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_019d2011-21e0-727d-9c2f-7d29211cbe6b" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019d2011-21e0-7c4d-851d-5ece93a6227e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019d2011-21e0-7ff8-ab60-5d7bb7d3c960" 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_019d2011-21e0-7c4d-851d-5ece93a6227e" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019d2011-21e0-7ff8-ab60-5d7bb7d3c960" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019d2011-21e0-7f8c-8309-ccc1d47dea56" 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_019d2011-21e0-7ff8-ab60-5d7bb7d3c960" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019d2011-21e0-7f8c-8309-ccc1d47dea56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019d2011-21e0-777c-91aa-4fb8d01a9756" 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_019d2011-21e0-7ff8-ab60-5d7bb7d3c960" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019d2011-21e0-777c-91aa-4fb8d01a9756" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-7ca4-abd7-63f074b31dca" 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_019d2011-21e0-74f1-90d4-bb429463c564" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d2011-21e0-7ca4-abd7-63f074b31dca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7ca4-abd7-63f074b31dca_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_019d2011-21e0-7ca4-abd7-63f074b31dca" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-7ca4-abd7-63f074b31dca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-761e-9520-b3c68f8d1e23" 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_019d2011-21e0-7ca4-abd7-63f074b31dca" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d2011-21e0-761e-9520-b3c68f8d1e23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-793f-83c1-6ad8bcd58f90" 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_019d2011-21e0-761e-9520-b3c68f8d1e23" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019d2011-21e0-793f-83c1-6ad8bcd58f90" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7f6f-b26c-438ce05e3f9d" 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_019d2011-21e0-761e-9520-b3c68f8d1e23" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019d2011-21e0-7f6f-b26c-438ce05e3f9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-7b66-865e-f3fbc5cf5bdc" 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_019d2011-21e0-761e-9520-b3c68f8d1e23" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d2011-21e0-7b66-865e-f3fbc5cf5bdc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019d2011-21e0-77c9-99a9-fa93530137a1" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndDueFromBanks_019d2011-21e0-7f48-8bc8-c521b2572506" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndDueFromBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:to="loc_us-gaap_CashAndDueFromBanks_019d2011-21e0-7f48-8bc8-c521b2572506" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositAtCarryingValue_019d2011-21e0-7010-b004-cbe1afa2551d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CertificatesOfDepositAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:to="loc_us-gaap_CertificatesOfDepositAtCarryingValue_019d2011-21e0-7010-b004-cbe1afa2551d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansHeldForSaleFairValueDisclosure_019d2011-21e0-78fe-abd1-fbbb28820e42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansHeldForSaleFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:to="loc_us-gaap_LoansHeldForSaleFairValueDisclosure_019d2011-21e0-78fe-abd1-fbbb28820e42" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_019d2011-21e0-7496-86ce-c3a72b0200f4" 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_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_019d2011-21e0-76e8-acdb-febfad2aa4a7" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_019d2011-21e0-7496-86ce-c3a72b0200f4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_019d2011-21e0-7dc6-9b80-0436038cebd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019d2011-21e0-77c9-99a9-fa93530137a1" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_019d2011-21e0-7dc6-9b80-0436038cebd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsFairValueDisclosure_019d2011-21e0-790e-82f5-8afcc4addb84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_019d2011-21e0-7dc6-9b80-0436038cebd8" xlink:to="loc_us-gaap_DepositsFairValueDisclosure_019d2011-21e0-790e-82f5-8afcc4addb84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_019d2011-21e0-77cd-b8ea-439230190b9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_019d2011-21e0-7dc6-9b80-0436038cebd8" xlink:to="loc_us-gaap_DebtInstrumentFairValue_019d2011-21e0-77cd-b8ea-439230190b9e" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#CommitmentsandContingenciesScheduleofCommitmentsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems_019cba0a-9cab-7a51-b4d1-7759424bdbfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable_019cba0a-9cab-7b6a-a320-5a733dfda6c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems_019cba0a-9cab-7a51-b4d1-7759424bdbfe" xlink:to="loc_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable_019cba0a-9cab-7b6a-a320-5a733dfda6c0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7629-8ead-f2d079266158" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable_019cba0a-9cab-7b6a-a320-5a733dfda6c0" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7629-8ead-f2d079266158" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-7629-8ead-f2d079266158_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7629-8ead-f2d079266158" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-7629-8ead-f2d079266158_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019cba0a-9cab-7629-8ead-f2d079266158" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsToExtendCreditMember_019cba0a-9cab-7c5a-8d62-f8a63bf3a0c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsToExtendCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:to="loc_us-gaap_CommitmentsToExtendCreditMember_019cba0a-9cab-7c5a-8d62-f8a63bf3a0c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandbyLettersOfCreditMember_019cba0a-9cab-7f64-9827-ff112dfbf1d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StandbyLettersOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:to="loc_us-gaap_StandbyLettersOfCreditMember_019cba0a-9cab-7f64-9827-ff112dfbf1d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalAdditionsMember_019d9ca3-ee50-76f4-913d-3a9dcbeadeb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalAdditionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:to="loc_us-gaap_CapitalAdditionsMember_019d9ca3-ee50-76f4-913d-3a9dcbeadeb6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_CommitmentsToExtendCreditLettersIssuedMember_019cba0a-9cab-79ea-919b-39b02ef194f4" xlink:href="lob-20260331.xsd#lob_CommitmentsToExtendCreditLettersIssuedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019cba0a-9cab-767a-a545-6203d8a7f8d9" xlink:to="loc_lob_CommitmentsToExtendCreditLettersIssuedMember_019cba0a-9cab-79ea-919b-39b02ef194f4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability_019cba0a-9cab-792b-a35e-bc5be83f3083" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems_019cba0a-9cab-7a51-b4d1-7759424bdbfe" xlink:to="loc_us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability_019cba0a-9cab-792b-a35e-bc5be83f3083" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#CommitmentsandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-703c-9af3-7f78f7410f62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-703c-9af3-7f78f7410f62" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019cba0a-9cab-7603-9a5d-099e0f566e68" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-703c-9af3-7f78f7410f62" xlink:to="loc_srt_CounterpartyNameAxis_019cba0a-9cab-7603-9a5d-099e0f566e68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019cba0a-9cab-7603-9a5d-099e0f566e68_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_019cba0a-9cab-7603-9a5d-099e0f566e68" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019cba0a-9cab-7603-9a5d-099e0f566e68_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019cba0a-9cab-7d1e-b946-1706c94758b3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_019cba0a-9cab-7603-9a5d-099e0f566e68" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019cba0a-9cab-7d1e-b946-1706c94758b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_SeventySevenRelationshipsMember_019dc316-d776-71b8-8531-4449fe513d2d" xlink:href="lob-20260331.xsd#lob_SeventySevenRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019cba0a-9cab-7d1e-b946-1706c94758b3" xlink:to="loc_lob_SeventySevenRelationshipsMember_019dc316-d776-71b8-8531-4449fe513d2d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffBalanceSheetCreditLossLiability_019cba0a-9cab-7c77-82b2-8adae0289059" 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_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_us-gaap_OffBalanceSheetCreditLossLiability_019cba0a-9cab-7c77-82b2-8adae0289059" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal_019cba0a-9cab-7974-adf6-807548199d2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal_019cba0a-9cab-7974-adf6-807548199d2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure_019cba0a-9cab-7fb2-9bb0-340f321a94e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_us-gaap_ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure_019cba0a-9cab-7fb2-9bb0-340f321a94e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConcentrationRiskNumberOfRelationshipsWhereRetainedExposureExceedsCompanyMaximum_019cba0a-9cab-7d25-9ad7-1ee308516ee5" xlink:href="lob-20260331.xsd#lob_ConcentrationRiskNumberOfRelationshipsWhereRetainedExposureExceedsCompanyMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_lob_ConcentrationRiskNumberOfRelationshipsWhereRetainedExposureExceedsCompanyMaximum_019cba0a-9cab-7d25-9ad7-1ee308516ee5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposure_019cba0a-9cab-765c-9fdf-4e24eb00017e" xlink:href="lob-20260331.xsd#lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposure_019cba0a-9cab-765c-9fdf-4e24eb00017e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposureAmountDisbursed_019cba0a-9cab-7395-a4e0-431c7d78958e" xlink:href="lob-20260331.xsd#lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposureAmountDisbursed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7083-a35e-ad1f05f06527" xlink:to="loc_lob_ConcentrationRiskCreditRiskFinancialInstrumentRetainedExposureAmountDisbursed_019cba0a-9cab-7395-a4e0-431c7d78958e" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/CommitmentsandContingenciesScheduleofGeographicConcentrationsDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#CommitmentsandContingenciesScheduleofGeographicConcentrationsDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/CommitmentsandContingenciesScheduleofGeographicConcentrationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7985-974a-30ba0e534cf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-728f-8b25-7c73734757f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7985-974a-30ba0e534cf2" xlink:to="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-728f-8b25-7c73734757f5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1" 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_ConcentrationRiskTable_019cba0a-9cab-728f-8b25-7c73734757f5" xlink:to="loc_srt_StatementGeographicalAxis_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1_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_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1" xlink:to="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" 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_019cba0a-9cab-79b0-8d0a-742ad5b2f4c1" xlink:to="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MidwestRegionMember_019cba0a-9cab-74a3-b2b4-7544970fa093" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MidwestRegionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_MidwestRegionMember_019cba0a-9cab-74a3-b2b4-7544970fa093" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NortheastRegionMember_019cba0a-9cab-77a3-b62a-be48f8e0ca14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NortheastRegionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_NortheastRegionMember_019cba0a-9cab-77a3-b62a-be48f8e0ca14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoutheastRegionMember_019cba0a-9cab-7932-9657-359f6e994877" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoutheastRegionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_SoutheastRegionMember_019cba0a-9cab-7932-9657-359f6e994877" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SouthwestRegionMember_019cba0a-9cab-792a-9251-af0d6674f2f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SouthwestRegionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_SouthwestRegionMember_019cba0a-9cab-792a-9251-af0d6674f2f3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WestRegionMember_019cba0a-9cab-79f6-b5f6-826567de8483" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WestRegionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_WestRegionMember_019cba0a-9cab-79f6-b5f6-826567de8483" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_019cba0a-9cab-73a6-a4ca-9f669af45696" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019cba0a-9cab-7c8a-a750-95c051fa81a3" xlink:to="loc_us-gaap_NonUsMember_019cba0a-9cab-73a6-a4ca-9f669af45696" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019cba0a-9cab-7bdc-b4d4-be0fc5709df8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-728f-8b25-7c73734757f5" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019cba0a-9cab-7bdc-b4d4-be0fc5709df8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019cba0a-9cab-7bdc-b4d4-be0fc5709df8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019cba0a-9cab-7bdc-b4d4-be0fc5709df8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019cba0a-9cab-7bdc-b4d4-be0fc5709df8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019cba0a-9cab-798c-8628-897a76e5bf0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019cba0a-9cab-7bdc-b4d4-be0fc5709df8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019cba0a-9cab-798c-8628-897a76e5bf0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019cba0a-9cab-71f0-878a-4b6419410404" 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_ConcentrationRiskBenchmarkDomain_019cba0a-9cab-798c-8628-897a76e5bf0f" xlink:to="loc_us-gaap_FinanceReceivablesMember_019cba0a-9cab-71f0-878a-4b6419410404" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019cba0a-9cab-7a89-9afe-89aa200da978" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019cba0a-9cab-728f-8b25-7c73734757f5" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019cba0a-9cab-7a89-9afe-89aa200da978" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019cba0a-9cab-7a89-9afe-89aa200da978_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019cba0a-9cab-7a89-9afe-89aa200da978" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019cba0a-9cab-7a89-9afe-89aa200da978_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019cba0a-9cab-771e-9ffa-8579be7435e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019cba0a-9cab-7a89-9afe-89aa200da978" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019cba0a-9cab-771e-9ffa-8579be7435e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_019cba0a-9cab-76c9-9e09-03eb31c998e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019cba0a-9cab-771e-9ffa-8579be7435e2" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_019cba0a-9cab-76c9-9e09-03eb31c998e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019cba0a-9cab-751d-af68-b257d33bf365" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019cba0a-9cab-7985-974a-30ba0e534cf2" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019cba0a-9cab-751d-af68-b257d33bf365" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.liveoakbank.com/role/StockPlansDetails" xlink:type="simple" xlink:href="lob-20260331.xsd#StockPlansDetails"/>
  <link:definitionLink xlink:role="http://www.liveoakbank.com/role/StockPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" 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_019cba0a-9cab-7213-8927-368b899e9ff5" 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_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019cba0a-9cab-7213-8927-368b899e9ff5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019cba0a-9cab-72a1-b8b3-32a9dc637f2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019cba0a-9cab-7213-8927-368b899e9ff5" xlink:to="loc_us-gaap_PlanNameAxis_019cba0a-9cab-72a1-b8b3-32a9dc637f2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019cba0a-9cab-72a1-b8b3-32a9dc637f2b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019cba0a-9cab-72a1-b8b3-32a9dc637f2b" xlink:to="loc_us-gaap_PlanNameDomain_019cba0a-9cab-72a1-b8b3-32a9dc637f2b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019cba0a-9cab-7d59-8067-ae1789dc39de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019cba0a-9cab-72a1-b8b3-32a9dc637f2b" xlink:to="loc_us-gaap_PlanNameDomain_019cba0a-9cab-7d59-8067-ae1789dc39de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_TwoThousandAndFifteenOmnibusPlanMember_019cba0a-9cab-7c1e-a9be-5ee395c9c0c1" xlink:href="lob-20260331.xsd#lob_TwoThousandAndFifteenOmnibusPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019cba0a-9cab-7d59-8067-ae1789dc39de" xlink:to="loc_lob_TwoThousandAndFifteenOmnibusPlanMember_019cba0a-9cab-7c1e-a9be-5ee395c9c0c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019cba0a-9cab-7cc1-ac7a-5147c530a2c7" 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_019cba0a-9cab-7213-8927-368b899e9ff5" xlink:to="loc_us-gaap_AwardTypeAxis_019cba0a-9cab-7cc1-ac7a-5147c530a2c7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7cc1-ac7a-5147c530a2c7_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_019cba0a-9cab-7cc1-ac7a-5147c530a2c7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7cc1-ac7a-5147c530a2c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7e03-a65a-95b8fdb998f1" 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_019cba0a-9cab-7cc1-ac7a-5147c530a2c7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7e03-a65a-95b8fdb998f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019cba0a-9cab-7f70-8fee-73fddc864120" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7e03-a65a-95b8fdb998f1" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019cba0a-9cab-7f70-8fee-73fddc864120" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019cba0a-9cab-7bbe-b811-bb454506cd8f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019cba0a-9cab-7e03-a65a-95b8fdb998f1" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019cba0a-9cab-7bbe-b811-bb454506cd8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019cba0a-9cab-7cbd-8313-737e656840a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019cba0a-9cab-7cbd-8313-737e656840a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_019cba0a-9cab-78f7-b4dd-d9354ce9f078" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_019cba0a-9cab-78f7-b4dd-d9354ce9f078" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_019cba0a-9cab-71dd-a8ab-ba6a67ba8d27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_019cba0a-9cab-71dd-a8ab-ba6a67ba8d27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019cba0a-9cab-7b71-a247-ba97385643a2" 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_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019cba0a-9cab-7b71-a247-ba97385643a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019cba0a-9cab-708c-a816-90bad10e5d83" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019cba0a-9cab-708c-a816-90bad10e5d83" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_019cba0a-9cab-748d-a768-87ed32ea4fba" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_019cba0a-9cab-748d-a768-87ed32ea4fba" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019cba0a-9cab-78f9-9b4a-77344325d952" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cba0a-9cab-7806-ae1b-06df1c802e7b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019cba0a-9cab-78f9-9b4a-77344325d952" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#IndividualsOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_GregoryW.SewardMember_019dc2f5-79b1-7e27-a01c-7cf025ba3a9a" xlink:href="lob-20260331.xsd#lob_GregoryW.SewardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_lob_GregoryW.SewardMember_019dc2f5-79b1-7e27-a01c-7cf025ba3a9a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lob_WilliamL.WilliamsIIIMember_019dc2f6-ca5f-738e-85cc-fa37908ea6c8" xlink:href="lob-20260331.xsd#lob_WilliamL.WilliamsIIIMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_lob_WilliamL.WilliamsIIIMember_019dc2f6-ca5f-738e-85cc-fa37908ea6c8" xlink:type="arc" order="3"/>
  </link:definitionLink>
</link:linkbase>
