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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f128b-9927-75bd-8d3b-77f3bd49dddd,g:cf3fcba9-f0de-47e1-b05a-a033b617e62a-->
<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.lloydsbank.com/role/CONDENSEDCONSOLIDATEDSTATEMENTOFCHANGESINEQUITYUNAUDITED" xlink:type="simple" xlink:href="lbk-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTOFCHANGESINEQUITYUNAUDITED"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/CONDENSEDCONSOLIDATEDSTATEMENTOFCHANGESINEQUITYUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_019f128b-a189-7a60-96e3-b25f77afc277" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable_019f128b-a189-7b53-9b3d-583006ff6900" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_019f128b-a189-7a60-96e3-b25f77afc277" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_019f128b-a189-7b53-9b3d-583006ff6900" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_019f128b-a189-798b-9807-4361e53d8b48" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_019f128b-a189-7b53-9b3d-583006ff6900" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_019f128b-a189-798b-9807-4361e53d8b48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-798b-9807-4361e53d8b48_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_019f128b-a189-798b-9807-4361e53d8b48" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-798b-9807-4361e53d8b48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-74ba-aa31-ed3978b813ce" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_019f128b-a189-798b-9807-4361e53d8b48" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-74ba-aa31-ed3978b813ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:href="lbk-20260630.xsd#lbk_EquityAttributableToOrdinaryShareholdersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-74ba-aa31-ed3978b813ce" xlink:to="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember_019f369c-73df-773b-8702-795b62375440" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:to="loc_ifrs-full_IssuedCapitalMember_019f369c-73df-773b-8702-795b62375440" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremiumMember_019f369d-1168-7ee2-b75f-f74ef4d9ecec" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SharePremiumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:to="loc_ifrs-full_SharePremiumMember_019f369d-1168-7ee2-b75f-f74ef4d9ecec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReservesMember_019f128b-a189-7e95-b95d-3b6134fd8933" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReservesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:to="loc_ifrs-full_OtherReservesMember_019f128b-a189-7e95-b95d-3b6134fd8933" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsMember_019f128b-a189-75aa-84e2-4368d6eaf60c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EquityAttributableToOrdinaryShareholdersMember_019f128b-a189-7e7c-ad69-0715b97bd4b5" xlink:to="loc_ifrs-full_RetainedEarningsMember_019f128b-a189-75aa-84e2-4368d6eaf60c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterestMember_019f128b-a189-7381-b610-f5930627dd0b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquityInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-74ba-aa31-ed3978b813ce" xlink:to="loc_ifrs-full_OtherEquityInterestMember_019f128b-a189-7381-b610-f5930627dd0b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember_019f128b-a189-7856-adb9-beda1148fc78" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_019f128b-a189-74ba-aa31-ed3978b813ce" xlink:to="loc_ifrs-full_NoncontrollingInterestsMember_019f128b-a189-7856-adb9-beda1148fc78" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_019f128b-a189-7a9f-b140-a92e16b5f261" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_019f128b-a189-7a60-96e3-b25f77afc277" xlink:to="loc_ifrs-full_Equity_019f128b-a189-7a9f-b140-a92e16b5f261" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAbstract_019f128b-a189-7d03-b52b-f1afe1362701" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_019f128b-a189-7a60-96e3-b25f77afc277" xlink:to="loc_ifrs-full_ComprehensiveIncomeAbstract_019f128b-a189-7d03-b52b-f1afe1362701" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_019f128b-a189-72db-b868-8c53e3ebb66a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeAbstract_019f128b-a189-7d03-b52b-f1afe1362701" xlink:to="loc_ifrs-full_ProfitLoss_019f128b-a189-72db-b868-8c53e3ebb66a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeAbstract_019f128b-a189-7d03-b52b-f1afe1362701" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019f128b-a189-7dae-91a2-74c53ab839d5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019f128b-a189-7dae-91a2-74c53ab839d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_MovementsInRevaluationReserveInRespectOfFinancialAssetsHeldAtFairValueThroughOtherComprehensiveIncomeNetOfTaxAbstract_019f128b-a189-7d6b-a49c-899bab73cc7a" xlink:href="lbk-20260630.xsd#lbk_MovementsInRevaluationReserveInRespectOfFinancialAssetsHeldAtFairValueThroughOtherComprehensiveIncomeNetOfTaxAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_lbk_MovementsInRevaluationReserveInRespectOfFinancialAssetsHeldAtFairValueThroughOtherComprehensiveIncomeNetOfTaxAbstract_019f128b-a189-7d6b-a49c-899bab73cc7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019f128b-a189-79b2-88d5-bdd72df61694" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_MovementsInRevaluationReserveInRespectOfFinancialAssetsHeldAtFairValueThroughOtherComprehensiveIncomeNetOfTaxAbstract_019f128b-a189-7d6b-a49c-899bab73cc7a" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019f128b-a189-79b2-88d5-bdd72df61694" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_019f128b-a189-743f-9f69-410bd46a5a61" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_019f128b-a189-743f-9f69-410bd46a5a61" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_019f128b-a189-76f2-9346-b656d84b3a39" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_019f128b-a189-76f2-9346-b656d84b3a39" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019f128b-a189-7e17-a8b2-e9e67881341e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019f128b-a189-7e17-a8b2-e9e67881341e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_019f128b-a189-71d7-966a-4ba2b61c5d90" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_019f128b-a189-7885-a930-c30a667ac25f" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_019f128b-a189-71d7-966a-4ba2b61c5d90" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_019f128b-a189-71c4-b55c-7238dd84b9b8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeAbstract_019f128b-a189-7d03-b52b-f1afe1362701" xlink:to="loc_ifrs-full_ComprehensiveIncome_019f128b-a189-71c4-b55c-7238dd84b9b8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:href="lbk-20260630.xsd#lbk_TransactionsWithOwnersAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_019f128b-a189-7a60-96e3-b25f77afc277" xlink:to="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaid_019f128b-a189-7ed2-8c33-57c8510a0ce6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_ifrs-full_DividendsPaid_019f128b-a189-7ed2-8c33-57c8510a0ce6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DistributionsOnOtherEquityInstrumentsNetOfTax_019f128b-a189-7bd5-801f-ed234bda8251" xlink:href="lbk-20260630.xsd#lbk_DistributionsOnOtherEquityInstrumentsNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_lbk_DistributionsOnOtherEquityInstrumentsNetOfTax_019f128b-a189-7bd5-801f-ed234bda8251" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IssueOfOtherEquityInstruments_019f128b-a189-702e-a76c-1113f2d65975" xlink:href="lbk-20260630.xsd#lbk_IssueOfOtherEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_lbk_IssueOfOtherEquityInstruments_019f128b-a189-702e-a76c-1113f2d65975" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RedemptionOfOtherEquityInstruments_019f128b-a189-7b6c-8bc7-7850aea2998e" xlink:href="lbk-20260630.xsd#lbk_RedemptionOfOtherEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_lbk_RedemptionOfOtherEquityInstruments_019f128b-a189-7b6c-8bc7-7850aea2998e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IncreaseThroughCapitalContributionsByOwnersEquity_019f128b-a189-7635-9725-5e9e10f1c700" xlink:href="lbk-20260630.xsd#lbk_IncreaseThroughCapitalContributionsByOwnersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_lbk_IncreaseThroughCapitalContributionsByOwnersEquity_019f128b-a189-7635-9725-5e9e10f1c700" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DecreaseThroughReturnOnCapitalContributionsToOwnersEquity_019f128b-a189-7d70-a2f4-73a4a1c81125" xlink:href="lbk-20260630.xsd#lbk_DecreaseThroughReturnOnCapitalContributionsToOwnersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_lbk_DecreaseThroughReturnOnCapitalContributionsToOwnersEquity_019f128b-a189-7d70-a2f4-73a4a1c81125" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquityAttributableToOwnersOfParent_019f128b-a189-77d9-b800-692ca1703d22" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquityAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquityAttributableToOwnersOfParent_019f128b-a189-77d9-b800-692ca1703d22" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners_019f128b-a189-7da6-af38-24ac06b0d432" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TransactionsWithOwnersAbstract_019f128b-a189-7cfb-b69d-b8925f9a27b3" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners_019f128b-a189-7da6-af38-24ac06b0d432" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_019f128b-a189-794f-a2ff-d1c0ee4711d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/SegmentalanalysisDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#SegmentalanalysisDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/SegmentalanalysisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfOperatingSegmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfOperatingSegmentsTable_019f128b-a189-74b7-9485-557f7443597d" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfOperatingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_lbk_ScheduleOfOperatingSegmentsTable_019f128b-a189-74b7-9485-557f7443597d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsAxis_019f128b-a189-730b-becd-6623a326f2ba" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsTable_019f128b-a189-74b7-9485-557f7443597d" xlink:to="loc_ifrs-full_SegmentConsolidationItemsAxis_019f128b-a189-730b-becd-6623a326f2ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-730b-becd-6623a326f2ba_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentConsolidationItemsAxis_019f128b-a189-730b-becd-6623a326f2ba" xlink:to="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-730b-becd-6623a326f2ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-7216-8484-41b7e3f6057c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentConsolidationItemsAxis_019f128b-a189-730b-becd-6623a326f2ba" xlink:to="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-7216-8484-41b7e3f6057c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingSegmentsMember_019f128b-a189-7067-bb4c-37e5582a0965" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-7216-8484-41b7e3f6057c" xlink:to="loc_ifrs-full_OperatingSegmentsMember_019f128b-a189-7067-bb4c-37e5582a0965" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EliminationOfIntersegmentAmountsMember_019f128b-a189-7d27-b2ca-0608019ab7d0" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EliminationOfIntersegmentAmountsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentConsolidationItemsDomain_019f128b-a189-7216-8484-41b7e3f6057c" xlink:to="loc_ifrs-full_EliminationOfIntersegmentAmountsMember_019f128b-a189-7d27-b2ca-0608019ab7d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsAxis_019f128b-a189-773c-95ec-bced7e6959d1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsTable_019f128b-a189-74b7-9485-557f7443597d" xlink:to="loc_ifrs-full_SegmentsAxis_019f128b-a189-773c-95ec-bced7e6959d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsDomain_019f128b-a189-773c-95ec-bced7e6959d1_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_019f128b-a189-773c-95ec-bced7e6959d1" xlink:to="loc_ifrs-full_SegmentsDomain_019f128b-a189-773c-95ec-bced7e6959d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsDomain_019f128b-a189-7e04-b489-69fbbcd8175a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_019f128b-a189-773c-95ec-bced7e6959d1" xlink:to="loc_ifrs-full_SegmentsDomain_019f128b-a189-7e04-b489-69fbbcd8175a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RetailSegmentMember_019f128b-a189-7ba2-bf0c-8a02509463d9" xlink:href="lbk-20260630.xsd#lbk_RetailSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_019f128b-a189-7e04-b489-69fbbcd8175a" xlink:to="loc_lbk_RetailSegmentMember_019f128b-a189-7ba2-bf0c-8a02509463d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CommercialBankingMember_019f128b-a189-76bd-8fc1-e9418a4b1cd2" xlink:href="lbk-20260630.xsd#lbk_CommercialBankingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_019f128b-a189-7e04-b489-69fbbcd8175a" xlink:to="loc_lbk_CommercialBankingMember_019f128b-a189-76bd-8fc1-e9418a4b1cd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherMember_019f128b-a189-7ba2-9eb5-ab738f93ee54" xlink:href="lbk-20260630.xsd#lbk_OtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_019f128b-a189-7e04-b489-69fbbcd8175a" xlink:to="loc_lbk_OtherMember_019f128b-a189-7ba2-9eb5-ab738f93ee54" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense_019f128b-a189-7bb4-8f75-e7aa8c28901b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_InterestRevenueExpense_019f128b-a189-7bb4-8f75-e7aa8c28901b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRevenue_019f128b-a189-76cd-9ba5-80edb03f8f6b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_OtherRevenue_019f128b-a189-76cd-9ba5-80edb03f8f6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Revenue_019f128b-a189-7dad-83e3-4b98b43fde84" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_Revenue_019f128b-a189-7dad-83e3-4b98b43fde84" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense_019f128b-a189-7277-88d4-793fb79dccd6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_OperatingExpense_019f128b-a189-7277-88d4-793fb79dccd6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019f128b-a189-7866-b4af-e42323018cd6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019f128b-a189-7866-b4af-e42323018cd6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_019f128b-a189-7633-a2e0-511bbe3b7636" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_019f128b-a189-7633-a2e0-511bbe3b7636" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Revenue_019f128b-a189-753e-9ebc-92cfabf9b65c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_019f128b-a189-790a-9c98-4f97e7f5c634" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_Assets_019f128b-a189-790a-9c98-4f97e7f5c634" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities_019f128b-a189-75c0-a8af-7e1b9ea9da3e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfOperatingSegmentsLineItems_019f128b-a189-72ed-825f-aa045f3564a4" xlink:to="loc_ifrs-full_Liabilities_019f128b-a189-75c0-a8af-7e1b9ea9da3e" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/RetirementbenefitobligationsScheduleofDefinedBenefitSchemeObligationsDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#RetirementbenefitobligationsScheduleofDefinedBenefitSchemeObligationsDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/RetirementbenefitobligationsScheduleofDefinedBenefitSchemeObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_019f128b-a189-724e-8150-a86da682ccfc" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDefinedBenefitPlansTable_019f128b-a189-790a-a957-dcd7863d2c10" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_019f128b-a189-724e-8150-a86da682ccfc" xlink:to="loc_ifrs-full_DisclosureOfDefinedBenefitPlansTable_019f128b-a189-790a-a957-dcd7863d2c10" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_019f128b-a189-7044-abc7-3550006379ba" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansTable_019f128b-a189-790a-a957-dcd7863d2c10" xlink:to="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_019f128b-a189-7044-abc7-3550006379ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7044-abc7-3550006379ba_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_019f128b-a189-7044-abc7-3550006379ba" xlink:to="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7044-abc7-3550006379ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7a1a-966d-b584262f55f1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_019f128b-a189-7044-abc7-3550006379ba" xlink:to="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7a1a-966d-b584262f55f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_019f128b-a189-7a71-b3e3-c5e7795b9e8e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7a1a-966d-b584262f55f1" xlink:to="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_019f128b-a189-7a71-b3e3-c5e7795b9e8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PlanAssetsMember_019f128b-a189-7bc4-b706-7e3a6418e87f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019f128b-a189-7a1a-966d-b584262f55f1" xlink:to="loc_ifrs-full_PlanAssetsMember_019f128b-a189-7bc4-b706-7e3a6418e87f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansAxis_019f128b-a189-7a36-92ff-f64b301f883f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansTable_019f128b-a189-790a-a957-dcd7863d2c10" xlink:to="loc_ifrs-full_DefinedBenefitPlansAxis_019f128b-a189-7a36-92ff-f64b301f883f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-7a36-92ff-f64b301f883f_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_019f128b-a189-7a36-92ff-f64b301f883f" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-7a36-92ff-f64b301f883f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-78fe-9bb2-ad2810ce754a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_019f128b-a189-7a36-92ff-f64b301f883f" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-78fe-9bb2-ad2810ce754a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DefinedBenefitPensionSchemesMember_019f128b-a189-7435-8b15-4904a5887b94" xlink:href="lbk-20260630.xsd#lbk_DefinedBenefitPensionSchemesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-78fe-9bb2-ad2810ce754a" xlink:to="loc_lbk_DefinedBenefitPensionSchemesMember_019f128b-a189-7435-8b15-4904a5887b94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherPostretirementBenefitSchemesMember_019f128b-a189-7062-b5fe-b36d458b6823" xlink:href="lbk-20260630.xsd#lbk_OtherPostretirementBenefitSchemesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_019f128b-a189-78fe-9bb2-ad2810ce754a" xlink:to="loc_lbk_OtherPostretirementBenefitSchemesMember_019f128b-a189-7062-b5fe-b36d458b6823" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_019f128b-a189-7006-b918-c76cbd3c9166" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_019f128b-a189-724e-8150-a86da682ccfc" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_019f128b-a189-7006-b918-c76cbd3c9166" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecognisedAssetsDefinedBenefitPlan_019f128b-a189-77b6-a34d-799ad559afa7" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedAssetsDefinedBenefitPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_019f128b-a189-724e-8150-a86da682ccfc" xlink:to="loc_ifrs-full_RecognisedAssetsDefinedBenefitPlan_019f128b-a189-77b6-a34d-799ad559afa7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_019f128b-a189-7d25-8d8e-2af635fc473a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_019f128b-a189-724e-8150-a86da682ccfc" xlink:to="loc_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_019f128b-a189-7d25-8d8e-2af635fc473a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/RetirementbenefitobligationsPrincipalAssumptionsDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#RetirementbenefitobligationsPrincipalAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/RetirementbenefitobligationsPrincipalAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesTable_019f128b-a189-735d-a943-c2136ab93ab3" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:to="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesTable_019f128b-a189-735d-a943-c2136ab93ab3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_PriceIndexAxis_019f128b-a189-798d-adcc-a583a753f38d" xlink:href="lbk-20260630.xsd#lbk_PriceIndexAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesTable_019f128b-a189-735d-a943-c2136ab93ab3" xlink:to="loc_lbk_PriceIndexAxis_019f128b-a189-798d-adcc-a583a753f38d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_PriceIndexDomain_019f128b-a189-798d-adcc-a583a753f38d_default" xlink:href="lbk-20260630.xsd#lbk_PriceIndexDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_lbk_PriceIndexAxis_019f128b-a189-798d-adcc-a583a753f38d" xlink:to="loc_lbk_PriceIndexDomain_019f128b-a189-798d-adcc-a583a753f38d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_PriceIndexDomain_019f128b-a189-7c1c-9fb3-725d0a629865" xlink:href="lbk-20260630.xsd#lbk_PriceIndexDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_lbk_PriceIndexAxis_019f128b-a189-798d-adcc-a583a753f38d" xlink:to="loc_lbk_PriceIndexDomain_019f128b-a189-7c1c-9fb3-725d0a629865" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RPIMember_019f128b-a189-792a-bde3-980a0e7125c2" xlink:href="lbk-20260630.xsd#lbk_RPIMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_PriceIndexDomain_019f128b-a189-7c1c-9fb3-725d0a629865" xlink:to="loc_lbk_RPIMember_019f128b-a189-792a-bde3-980a0e7125c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CPIMember_019f128b-a189-73d7-8d47-268df19f5123" xlink:href="lbk-20260630.xsd#lbk_CPIMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_PriceIndexDomain_019f128b-a189-7c1c-9fb3-725d0a629865" xlink:to="loc_lbk_CPIMember_019f128b-a189-73d7-8d47-268df19f5123" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_019f128b-a189-7af9-862d-adf86e16b891" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:to="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_019f128b-a189-7af9-862d-adf86e16b891" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RateOfInflationAbstract_019f128b-a189-7610-a495-ac9d3c2a01b2" xlink:href="lbk-20260630.xsd#lbk_RateOfInflationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:to="loc_lbk_RateOfInflationAbstract_019f128b-a189-7610-a495-ac9d3c2a01b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_019f128b-a189-75bd-985a-b5d28e56f0a8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateOfInflationAbstract_019f128b-a189-7610-a495-ac9d3c2a01b2" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_019f128b-a189-75bd-985a-b5d28e56f0a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_019f128b-a189-7da7-b219-92a29cc45c6f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_019f128b-a189-7da7-b219-92a29cc45c6f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases_019f128b-a189-7769-b22d-bb4125c9e6a7" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfPrincipalActuarialAndFinancialAssumptionsUsedInValuationsOfDefinedBenefitPensionSchemesLineItems_019f128b-a189-72b4-9a53-e037fd82f43f" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases_019f128b-a189-7769-b22d-bb4125c9e6a7" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/ImpairmentScheduleofImpairmentDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#ImpairmentScheduleofImpairmentDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/ImpairmentScheduleofImpairmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ImpaimentDetailsScheduleOfImpairmentLineItems_019f128b-a189-76b7-b59b-a9478b22e8e6" xlink:href="lbk-20260630.xsd#lbk_ImpaimentDetailsScheduleOfImpairmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable_019f128b-a189-7aab-a395-8d5ebf887555" xlink:href="lbk-20260630.xsd#lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ImpaimentDetailsScheduleOfImpairmentLineItems_019f128b-a189-76b7-b59b-a9478b22e8e6" xlink:to="loc_lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable_019f128b-a189-7aab-a395-8d5ebf887555" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a189-75ac-9f7a-ddc4522c50d0" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable_019f128b-a189-7aab-a395-8d5ebf887555" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a189-75ac-9f7a-ddc4522c50d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-75ac-9f7a-ddc4522c50d0_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a189-75ac-9f7a-ddc4522c50d0" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-75ac-9f7a-ddc4522c50d0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-799c-af6e-244c08837cfd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a189-75ac-9f7a-ddc4522c50d0" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-799c-af6e-244c08837cfd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_019f128b-a189-7577-9f10-4a913f2cba4d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-799c-af6e-244c08837cfd" xlink:to="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_019f128b-a189-7577-9f10-4a913f2cba4d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a189-7138-b476-4786a9fe81d8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a189-799c-af6e-244c08837cfd" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a189-7138-b476-4786a9fe81d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f128b-a189-72db-80be-7bf0b20745bf" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable_019f128b-a189-7aab-a395-8d5ebf887555" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f128b-a189-72db-80be-7bf0b20745bf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-72db-80be-7bf0b20745bf_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f128b-a189-72db-80be-7bf0b20745bf" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-72db-80be-7bf0b20745bf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-74db-9ef7-4644c6774728" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f128b-a189-72db-80be-7bf0b20745bf" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-74db-9ef7-4644c6774728" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_LoansAndAdvancesToBanksMember_019f128b-a189-79fe-a228-d0282c944f1e" xlink:href="lbk-20260630.xsd#lbk_LoansAndAdvancesToBanksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-74db-9ef7-4644c6774728" xlink:to="loc_lbk_LoansAndAdvancesToBanksMember_019f128b-a189-79fe-a228-d0282c944f1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_LoansAndAdvancesToCustomersMember_019f128b-a189-7877-ac66-04e267a003c8" xlink:href="lbk-20260630.xsd#lbk_LoansAndAdvancesToCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-74db-9ef7-4644c6774728" xlink:to="loc_lbk_LoansAndAdvancesToCustomersMember_019f128b-a189-7877-ac66-04e267a003c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecuritiesMember_019f128b-a189-70f5-939e-24053d172cc3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f128b-a189-74db-9ef7-4644c6774728" xlink:to="loc_ifrs-full_DebtSecuritiesMember_019f128b-a189-70f5-939e-24053d172cc3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsAxis_019f128b-a189-76ae-a14c-aed4d2a771f0" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_IMPAIRMENTDetailsScheduleOfImpairmentTable_019f128b-a189-7aab-a395-8d5ebf887555" xlink:to="loc_ifrs-full_ClassesOfAssetsAxis_019f128b-a189-76ae-a14c-aed4d2a771f0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain_019f128b-a189-76ae-a14c-aed4d2a771f0_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis_019f128b-a189-76ae-a14c-aed4d2a771f0" xlink:to="loc_ifrs-full_ClassesOfAssetsDomain_019f128b-a189-76ae-a14c-aed4d2a771f0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain_019f128b-a189-76eb-986c-2641d2dbe464" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis_019f128b-a189-76ae-a14c-aed4d2a771f0" xlink:to="loc_ifrs-full_ClassesOfAssetsDomain_019f128b-a189-76eb-986c-2641d2dbe464" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_LoanCommitmentsAndFinancialGuaranteesMember_019f128b-a189-7211-b29f-dd90681293d9" xlink:href="lbk-20260630.xsd#lbk_LoanCommitmentsAndFinancialGuaranteesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfAssetsDomain_019f128b-a189-76eb-986c-2641d2dbe464" xlink:to="loc_lbk_LoanCommitmentsAndFinancialGuaranteesMember_019f128b-a189-7211-b29f-dd90681293d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019fa8ff-7b2d-7919-ace6-ca5ca68484cf" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ImpaimentDetailsScheduleOfImpairmentLineItems_019f128b-a189-76b7-b59b-a9478b22e8e6" xlink:to="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019fa8ff-7b2d-7919-ace6-ca5ca68484cf" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialAssetsCarriedatFairValuebyValuationHierarchyDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialAssetsCarriedatFairValuebyValuationHierarchyDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialAssetsCarriedatFairValuebyValuationHierarchyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7915-b58f-0ee3733bf1be" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7915-b58f-0ee3733bf1be" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7fff-8714-ebfbfbfd84dd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7915-b58f-0ee3733bf1be" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7fff-8714-ebfbfbfd84dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7fff-8714-ebfbfbfd84dd_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7fff-8714-ebfbfbfd84dd" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7fff-8714-ebfbfbfd84dd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7f02-9ee3-522dd1ac569e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7fff-8714-ebfbfbfd84dd" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7f02-9ee3-522dd1ac569e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-74e3-b4f6-ad5fcc5c644a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7f02-9ee3-522dd1ac569e" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-74e3-b4f6-ad5fcc5c644a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a24a-7bff-83b3-3e5eb7fcf367" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7f02-9ee3-522dd1ac569e" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a24a-7bff-83b3-3e5eb7fcf367" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-71f0-9f4c-c40789997ad6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7915-b58f-0ee3733bf1be" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-71f0-9f4c-c40789997ad6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-71f0-9f4c-c40789997ad6_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-71f0-9f4c-c40789997ad6" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-71f0-9f4c-c40789997ad6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-720c-ac4c-a69f7b19b973" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-71f0-9f4c-c40789997ad6" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-720c-ac4c-a69f7b19b973" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember_019f128b-a24a-721c-ac34-746818d1f365" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-720c-ac4c-a69f7b19b973" xlink:to="loc_ifrs-full_Level1OfFairValueHierarchyMember_019f128b-a24a-721c-ac34-746818d1f365" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember_019f128b-a24a-7493-a2b5-40766c9f9918" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-720c-ac4c-a69f7b19b973" xlink:to="loc_ifrs-full_Level2OfFairValueHierarchyMember_019f128b-a24a-7493-a2b5-40766c9f9918" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7212-ad74-fdd43ba7de41" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-720c-ac4c-a69f7b19b973" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7212-ad74-fdd43ba7de41" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToCustomers_019f128b-a24a-73a3-9109-124a1a9fe293" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_LoansAndAdvancesToCustomers_019f128b-a24a-73a3-9109-124a1a9fe293" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsHeld_019f128b-a24a-7255-b8ff-3b06b6754cc3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_DebtInstrumentsHeld_019f128b-a24a-7255-b8ff-3b06b6754cc3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInstrumentsHeld_019f128b-a24a-7c64-b8c7-ccad969edf54" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_EquityInstrumentsHeld_019f128b-a24a-7c64-b8c7-ccad969edf54" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019f128b-a24a-7a59-b72b-29e47e428bc3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019f128b-a24a-7a59-b72b-29e47e428bc3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_019f128b-a24a-7617-b795-1df37b96b7f1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_019f128b-a24a-7617-b795-1df37b96b7f1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValue_019f128b-a24a-723f-9654-b1a2c30f2cf6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7396-923d-847b5237e3eb" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValue_019f128b-a24a-723f-9654-b1a2c30f2cf6" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialLiabilitiesCarriedatFairValuebyValuationHierarchyDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialLiabilitiesCarriedatFairValuebyValuationHierarchyDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofFinancialLiabilitiesCarriedatFairValuebyValuationHierarchyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ca5-8aad-9b42554a77a6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-7b0d-a2dd-a2be57176ced" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ca5-8aad-9b42554a77a6" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-7b0d-a2dd-a2be57176ced" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-709e-b813-817fa964d87f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-7b0d-a2dd-a2be57176ced" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-709e-b813-817fa964d87f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-709e-b813-817fa964d87f_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-709e-b813-817fa964d87f" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-709e-b813-817fa964d87f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7666-84d7-5f47cf6541b5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-709e-b813-817fa964d87f" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7666-84d7-5f47cf6541b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember_019f128b-a24a-7748-b903-f0ed3ab39443" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7666-84d7-5f47cf6541b5" xlink:to="loc_ifrs-full_Level1OfFairValueHierarchyMember_019f128b-a24a-7748-b903-f0ed3ab39443" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember_019f128b-a24a-7f2b-a55f-2a2a98843625" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7666-84d7-5f47cf6541b5" xlink:to="loc_ifrs-full_Level2OfFairValueHierarchyMember_019f128b-a24a-7f2b-a55f-2a2a98843625" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7bae-94ac-0302a77b2a2f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7666-84d7-5f47cf6541b5" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7bae-94ac-0302a77b2a2f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_019f128b-a24a-7884-9ea8-730aaa4ae341" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ca5-8aad-9b42554a77a6" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_019f128b-a24a-7884-9ea8-730aaa4ae341" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_019f128b-a24a-75b4-a024-89a3c9ea8210" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ca5-8aad-9b42554a77a6" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_019f128b-a24a-75b4-a024-89a3c9ea8210" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValue_019f128b-a24a-766d-80be-89ef42abcd29" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ca5-8aad-9b42554a77a6" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValue_019f128b-a24a-766d-80be-89ef42abcd29" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialAssetsPortfolioDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialAssetsPortfolioDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialAssetsPortfolioDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7836-91f3-596b59f822b1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7126-bbe8-3dd3d9849eb1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7836-91f3-596b59f822b1" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7126-bbe8-3dd3d9849eb1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-745c-984b-13ff738fb1db" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7126-bbe8-3dd3d9849eb1" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-745c-984b-13ff738fb1db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-745c-984b-13ff738fb1db_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-745c-984b-13ff738fb1db" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-745c-984b-13ff738fb1db_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-73de-812e-d21cf949bf44" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-745c-984b-13ff738fb1db" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-73de-812e-d21cf949bf44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7cd9-a98a-390544401a3d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-73de-812e-d21cf949bf44" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7cd9-a98a-390544401a3d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7a16-bff2-630c07a2d841" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019f128b-a24a-7126-bbe8-3dd3d9849eb1" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7a16-bff2-630c07a2d841" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7a16-bff2-630c07a2d841_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7a16-bff2-630c07a2d841" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-7a16-bff2-630c07a2d841_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-729e-8e33-a085f4bc8751" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f128b-a24a-7a16-bff2-630c07a2d841" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-729e-8e33-a085f4bc8751" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7890-a44f-84cabc570e15" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-729e-8e33-a085f4bc8751" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7890-a44f-84cabc570e15" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a24a-7798-a9e5-0cb6f636a57d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-729e-8e33-a085f4bc8751" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f128b-a24a-7798-a9e5-0cb6f636a57d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueMember_019f128b-a24a-7447-91b9-a27e54319117" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f128b-a24a-729e-8e33-a085f4bc8751" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueMember_019f128b-a24a-7447-91b9-a27e54319117" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019f128b-a24a-7836-91f3-596b59f822b1" xlink:to="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f128b-a24a-7b8d-8995-4f1a48358637" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_FinancialAssets_019f128b-a24a-7b8d-8995-4f1a48358637" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets_019f128b-a24a-78a8-b0f3-9bab63535b1d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets_019f128b-a24a-78a8-b0f3-9bab63535b1d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_019f128b-a24a-761d-ad82-ad8115cc6ec9" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_019f128b-a24a-761d-ad82-ad8115cc6ec9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_019f128b-a24a-76da-b78d-407a6d90b2e5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_019f128b-a24a-76da-b78d-407a6d90b2e5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchasesFairValueMeasurementAssets_019f128b-a24a-704e-b31c-aeabfcd735ae" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_PurchasesFairValueMeasurementAssets_019f128b-a24a-704e-b31c-aeabfcd735ae" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesFairValueMeasurementAssets_019f128b-a24a-7a08-ae0e-15d397da365d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesFairValueMeasurementAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_SalesFairValueMeasurementAssets_019f128b-a24a-7a08-ae0e-15d397da365d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f128b-a24a-787a-b251-5108b099a7f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation_019f128b-a24a-7a03-a74d-6e09fc4f41e8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019f128b-a24a-7ca3-b617-bf300b639227" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation_019f128b-a24a-7a03-a74d-6e09fc4f41e8" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialLiabilitiesPortfolioDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialLiabilitiesPortfolioDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofMovementsinLevel3FinancialLiabilitiesPortfolioDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ed9-b284-55f159fe30ae" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-72fc-9cf1-02371d722160" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ed9-b284-55f159fe30ae" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-72fc-9cf1-02371d722160" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-74b2-91e5-e66b1cd2dcbc" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-72fc-9cf1-02371d722160" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-74b2-91e5-e66b1cd2dcbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-74b2-91e5-e66b1cd2dcbc_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-74b2-91e5-e66b1cd2dcbc" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-74b2-91e5-e66b1cd2dcbc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7e1f-9467-e5451d34699d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f128b-a24a-74b2-91e5-e66b1cd2dcbc" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7e1f-9467-e5451d34699d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7e6a-99dd-54b0fda52fef" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f128b-a24a-7e1f-9467-e5451d34699d" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f128b-a24a-7e6a-99dd-54b0fda52fef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-74e7-9c84-b04169dc311a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019f128b-a24a-72fc-9cf1-02371d722160" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-74e7-9c84-b04169dc311a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-74e7-9c84-b04169dc311a_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-74e7-9c84-b04169dc311a" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-74e7-9c84-b04169dc311a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-746f-9b14-f65306ebbe99" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-74e7-9c84-b04169dc311a" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-746f-9b14-f65306ebbe99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7fed-b69b-38352b8c5d12" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-746f-9b14-f65306ebbe99" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7fed-b69b-38352b8c5d12" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember_019f128b-a24a-776b-bfeb-90a0e8047d47" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-746f-9b14-f65306ebbe99" xlink:to="loc_ifrs-full_DerivativesMember_019f128b-a24a-776b-bfeb-90a0e8047d47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueMember_019f128b-a24a-7554-b345-c5055e23acfd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-746f-9b14-f65306ebbe99" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueMember_019f128b-a24a-7554-b345-c5055e23acfd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesLineItems_019f128b-a24a-7ed9-b284-55f159fe30ae" xlink:to="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilities_019f128b-a24a-7c92-9459-a7ee966b053b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:to="loc_ifrs-full_FinancialLiabilities_019f128b-a24a-7c92-9459-a7ee966b053b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities_019f128b-a24a-7451-8561-e18fbf517269" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:to="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossExcludingExchangeDifferencesFairValueMeasurementLiabilities_019f128b-a24a-7451-8561-e18fbf517269" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RedemptionFairValueMeasurementLiabilities_019f128b-a24a-7ff7-88b8-330f2339ab2e" xlink:href="lbk-20260630.xsd#lbk_RedemptionFairValueMeasurementLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:to="loc_lbk_RedemptionFairValueMeasurementLiabilities_019f128b-a24a-7ff7-88b8-330f2339ab2e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilities_019f128b-a24a-735d-8e20-2ad6fa47e48e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeExcludingExchangeDifferencesFairValueMeasurementLiabilities_019f128b-a24a-7dd2-865d-04d1de4eb2dd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeExcludingExchangeDifferencesFairValueMeasurementLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019f128b-a24a-778e-8eac-22e384f2cc88" xlink:to="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeExcludingExchangeDifferencesFairValueMeasurementLiabilities_019f128b-a24a-7dd2-865d-04d1de4eb2dd" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofSignificantUnobservableInputsUsedinFairValueMeasurementDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofSignificantUnobservableInputsUsedinFairValueMeasurementDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofSignificantUnobservableInputsUsedinFairValueMeasurementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7d45-9bfb-29daf63c11e6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c2a-cd64-7bd7-9638-dbf4d2b1313c" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7d45-9bfb-29daf63c11e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f4c2a-cd64-7366-91d3-3200de413c76" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7d45-9bfb-29daf63c11e6" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f4c2a-cd64-7366-91d3-3200de413c76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019fa8e2-0e50-7631-9f48-08e2e02e0d3e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c2a-cd64-7d45-9bfb-29daf63c11e6" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019fa8e2-0e50-7631-9f48-08e2e02e0d3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c2a-cd64-7023-b2f8-8df9599ceee8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c2a-cd64-7023-b2f8-8df9599ceee8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7023-b2f8-8df9599ceee8_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c2a-cd64-7023-b2f8-8df9599ceee8" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7023-b2f8-8df9599ceee8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7c1e-9578-8e969a94f37c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c2a-cd64-7023-b2f8-8df9599ceee8" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7c1e-9578-8e969a94f37c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsumerLoansMember_019f4c2a-cd64-7134-9303-5b99ae873a4e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConsumerLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7c1e-9578-8e969a94f37c" xlink:to="loc_ifrs-full_ConsumerLoansMember_019f4c2a-cd64-7134-9303-5b99ae873a4e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecuritiesMember_019f4c2a-cd64-74c2-a4f7-9d37f107a981" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7c1e-9578-8e969a94f37c" xlink:to="loc_ifrs-full_DebtSecuritiesMember_019f4c2a-cd64-74c2-a4f7-9d37f107a981" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquitySecuritiesMember_019f4c2a-cd64-7a59-918b-58b836a98676" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c2a-cd64-7c1e-9578-8e969a94f37c" xlink:to="loc_ifrs-full_OtherEquitySecuritiesMember_019f4c2a-cd64-7a59-918b-58b836a98676" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementAxis_019f4c2a-cd64-7f83-bbcb-8d985f1eab77" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_MeasurementAxis_019f4c2a-cd64-7f83-bbcb-8d985f1eab77" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f4c2a-cd64-7f83-bbcb-8d985f1eab77_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MeasurementAxis_019f4c2a-cd64-7f83-bbcb-8d985f1eab77" xlink:to="loc_ifrs-full_MeasurementDomain_019f4c2a-cd64-7f83-bbcb-8d985f1eab77_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f4c2a-cd64-79cc-b997-e1caee801c72" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MeasurementAxis_019f4c2a-cd64-7f83-bbcb-8d985f1eab77" xlink:to="loc_ifrs-full_MeasurementDomain_019f4c2a-cd64-79cc-b997-e1caee801c72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecurringFairValueMeasurementMember_019f4c2a-cd64-7361-b7b0-ac013dd78151" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecurringFairValueMeasurementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_019f4c2a-cd64-79cc-b997-e1caee801c72" xlink:to="loc_ifrs-full_RecurringFairValueMeasurementMember_019f4c2a-cd64-7361-b7b0-ac013dd78151" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeAxis_019f4c2a-cd64-7d4f-983d-072fc8d8c10c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_RangeAxis_019f4c2a-cd64-7d4f-983d-072fc8d8c10c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7d4f-983d-072fc8d8c10c_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_019f4c2a-cd64-7d4f-983d-072fc8d8c10c" xlink:to="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7d4f-983d-072fc8d8c10c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7bd7-ba39-d49bdcd8ba85" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_019f4c2a-cd64-7d4f-983d-072fc8d8c10c" xlink:to="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7bd7-ba39-d49bdcd8ba85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BottomOfRangeMember_019f4c2a-cd64-7472-ab6e-14375e6f1d1e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7bd7-ba39-d49bdcd8ba85" xlink:to="loc_ifrs-full_BottomOfRangeMember_019f4c2a-cd64-7472-ab6e-14375e6f1d1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TopOfRangeMember_019f4c2a-cd64-7af5-a9af-51e439feb6f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_019f4c2a-cd64-7bd7-ba39-d49bdcd8ba85" xlink:to="loc_ifrs-full_TopOfRangeMember_019f4c2a-cd64-7af5-a9af-51e439feb6f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsAxis_019f4c2a-cd64-7dea-85c7-09acc52c82d6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_UnobservableInputsAxis_019f4c2a-cd64-7dea-85c7-09acc52c82d6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7dea-85c7-09acc52c82d6_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_UnobservableInputsAxis_019f4c2a-cd64-7dea-85c7-09acc52c82d6" xlink:to="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7dea-85c7-09acc52c82d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_UnobservableInputsAxis_019f4c2a-cd64-7dea-85c7-09acc52c82d6" xlink:to="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditSpreadMeasurementInputMember_019f4c2a-cd64-7e0d-af8c-87fe4fd114bb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditSpreadMeasurementInputMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:to="loc_ifrs-full_CreditSpreadMeasurementInputMember_019f4c2a-cd64-7e0d-af8c-87fe4fd114bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_HousePriceIndexMember_019f4c2a-cd64-7d60-96bc-f5fe302ad88d" xlink:href="lbk-20260630.xsd#lbk_HousePriceIndexMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:to="loc_lbk_HousePriceIndexMember_019f4c2a-cd64-7d60-96bc-f5fe302ad88d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_PriceMeasurementInputMember_019fa8e0-1f06-7f03-9d95-787bb2efef37" xlink:href="lbk-20260630.xsd#lbk_PriceMeasurementInputMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:to="loc_lbk_PriceMeasurementInputMember_019fa8e0-1f06-7f03-9d95-787bb2efef37" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InterestRateVolatilityMember_019f4c2a-cd64-7b56-a146-f72471c7696d" xlink:href="lbk-20260630.xsd#lbk_InterestRateVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c2a-cd64-7fd9-bbaf-2e295e25dd4a" xlink:to="loc_lbk_InterestRateVolatilityMember_019f4c2a-cd64-7b56-a146-f72471c7696d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_019f4c2a-cd64-7411-abf6-9cec080c638f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_019f4c2a-cd64-7411-abf6-9cec080c638f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7411-abf6-9cec080c638f_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_019f4c2a-cd64-7411-abf6-9cec080c638f" xlink:to="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7411-abf6-9cec080c638f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_019f4c2a-cd64-7411-abf6-9cec080c638f" xlink:to="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscountedCashFlowMember_019f4c2a-cd64-7249-ba16-cb37bf412973" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DiscountedCashFlowMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:to="loc_ifrs-full_DiscountedCashFlowMember_019f4c2a-cd64-7249-ba16-cb37bf412973" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OptionPricingModelMember_019f4c2a-cd64-76ee-86ad-fd465beed11a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OptionPricingModelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:to="loc_ifrs-full_OptionPricingModelMember_019f4c2a-cd64-76ee-86ad-fd465beed11a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MarketApproachMember_019f4c2a-cd64-752b-b9b6-7edf0c928d88" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketApproachMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:to="loc_ifrs-full_MarketApproachMember_019f4c2a-cd64-752b-b9b6-7edf0c928d88" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetAssetValueMember_019f4c2a-cd64-7070-9f2a-520be83435b3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetAssetValueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019f4c2a-cd64-7fa6-8ac2-f3b5fc45c75b" xlink:to="loc_ifrs-full_NetAssetValueMember_019f4c2a-cd64-7070-9f2a-520be83435b3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7dcf-a18f-76965de8438e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7dcf-a18f-76965de8438e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7dcf-a18f-76965de8438e_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7dcf-a18f-76965de8438e" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7dcf-a18f-76965de8438e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7d16-a75e-e6f2a0442cca" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7dcf-a18f-76965de8438e" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7d16-a75e-e6f2a0442cca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f4c2a-cd64-7499-9f30-af288b3f3d1e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7d16-a75e-e6f2a0442cca" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f4c2a-cd64-7499-9f30-af288b3f3d1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember_019f4c2a-cd64-71a4-8328-baa47dcf27b8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7d16-a75e-e6f2a0442cca" xlink:to="loc_ifrs-full_DerivativesMember_019f4c2a-cd64-71a4-8328-baa47dcf27b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7b78-8163-541b8e0a5bf3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f4c2a-6184-7bdd-9d7e-b9e511a32c50" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7b78-8163-541b8e0a5bf3" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7b78-8163-541b8e0a5bf3_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7b78-8163-541b8e0a5bf3" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7b78-8163-541b8e0a5bf3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7047-959d-4661130b2701" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c2a-cd64-7b78-8163-541b8e0a5bf3" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7047-959d-4661130b2701" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SecuritisationsMember_019f4c2a-cd64-77d7-b18c-22705949c1c5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SecuritisationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7047-959d-4661130b2701" xlink:to="loc_ifrs-full_SecuritisationsMember_019f4c2a-cd64-77d7-b18c-22705949c1c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InterestRateDerivativeMember_019f4c2a-cd64-79ea-ad2b-2638eb627b38" xlink:href="lbk-20260630.xsd#lbk_InterestRateDerivativeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7047-959d-4661130b2701" xlink:to="loc_lbk_InterestRateDerivativeMember_019f4c2a-cd64-79ea-ad2b-2638eb627b38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SharedAppreciationRightsMember_019f849d-344b-7dab-bc14-e6f9af37c4ee" xlink:href="lbk-20260630.xsd#lbk_SharedAppreciationRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c2a-cd64-7047-959d-4661130b2701" xlink:to="loc_lbk_SharedAppreciationRightsMember_019f849d-344b-7dab-bc14-e6f9af37c4ee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantUnobservableInputAssets_019f4c2a-cd64-70db-bf40-4627dd399c69" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantUnobservableInputAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_SignificantUnobservableInputAssets_019f4c2a-cd64-70db-bf40-4627dd399c69" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019f4c2a-cd64-7f48-8515-1d93dc4882b7" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019f4c2a-cd64-7f48-8515-1d93dc4882b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_019fa8e2-0e50-775b-bbb0-fcc60dc995d5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_019fa8e2-0e50-775b-bbb0-fcc60dc995d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValue_019f8fa8-9934-7001-859d-ce311b1c0a8d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValue_019f8fa8-9934-7001-859d-ce311b1c0a8d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantUnobservableInputLiabilities_019f4c2a-cd64-7e72-84fb-1c61e751a21c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantUnobservableInputLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_SignificantUnobservableInputLiabilities_019f4c2a-cd64-7e72-84fb-1c61e751a21c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_019f4c2a-cd64-72a8-8cf7-dd960d485dad" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLoss_019f4c2a-cd64-72a8-8cf7-dd960d485dad" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_019f4c2a-cd64-782a-9b1b-20cb14023e0b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_019f4c2a-cd64-782a-9b1b-20cb14023e0b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValue_019f4c2a-cd64-712a-99c2-ff92445d13cb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c2a-cd64-767a-baca-f6b3c50c2a5d" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValue_019f4c2a-cd64-712a-99c2-ff92445d13cb" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofSensitivityofLevel3ValuationsDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofSensitivityofLevel3ValuationsDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofSensitivityofLevel3ValuationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c3a-140b-75bc-b496-cf882bcff3b0" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c3a-140b-75bc-b496-cf882bcff3b0" xlink:to="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-7a84-b368-1faa3a0b9acb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_019f4c3a-140b-79cd-a25b-b88a2b7cfcfb" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-7a84-b368-1faa3a0b9acb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f4c3a-140b-7d1f-a1c7-19f0b2c4f7d8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-7a84-b368-1faa3a0b9acb" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019f4c3a-140b-7d1f-a1c7-19f0b2c4f7d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f4c3a-140b-71df-87a2-28ae6991c47e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_019f4c3a-140b-7a84-b368-1faa3a0b9acb" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019f4c3a-140b-71df-87a2-28ae6991c47e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c3a-140b-7c88-a437-769ac44c8080" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c3a-140b-7c88-a437-769ac44c8080" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7c88-a437-769ac44c8080_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c3a-140b-7c88-a437-769ac44c8080" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7c88-a437-769ac44c8080_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7b22-b711-2210007b43d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_019f4c3a-140b-7c88-a437-769ac44c8080" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7b22-b711-2210007b43d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsumerLoansMember_019f4c3a-140b-7cb2-868b-892bc5973798" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConsumerLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7b22-b711-2210007b43d4" xlink:to="loc_ifrs-full_ConsumerLoansMember_019f4c3a-140b-7cb2-868b-892bc5973798" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecuritiesMember_019f4c3a-140b-7f7a-907b-ee864e0cd21b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7b22-b711-2210007b43d4" xlink:to="loc_ifrs-full_DebtSecuritiesMember_019f4c3a-140b-7f7a-907b-ee864e0cd21b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquitySecuritiesMember_019f4c3a-140b-75f7-8197-4ffa51737f87" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_019f4c3a-140b-7b22-b711-2210007b43d4" xlink:to="loc_ifrs-full_OtherEquitySecuritiesMember_019f4c3a-140b-75f7-8197-4ffa51737f87" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f4c3a-140b-77a5-8496-8aa6ef7b67a2" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f4c3a-140b-77a5-8496-8aa6ef7b67a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f4c3a-140b-77a5-8496-8aa6ef7b67a2_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f4c3a-140b-77a5-8496-8aa6ef7b67a2" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f4c3a-140b-77a5-8496-8aa6ef7b67a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f4c3a-140b-7d00-9c0d-252b15b18570" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_019f4c3a-140b-77a5-8496-8aa6ef7b67a2" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f4c3a-140b-7d00-9c0d-252b15b18570" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f4c3a-140b-796d-8aee-6b1f12f5ab8e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_019f4c3a-140b-7d00-9c0d-252b15b18570" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_019f4c3a-140b-796d-8aee-6b1f12f5ab8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementAxis_019f4c3a-140b-72f7-8fe4-fbaddc73d186" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_MeasurementAxis_019f4c3a-140b-72f7-8fe4-fbaddc73d186" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f4c3a-140b-72f7-8fe4-fbaddc73d186_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MeasurementAxis_019f4c3a-140b-72f7-8fe4-fbaddc73d186" xlink:to="loc_ifrs-full_MeasurementDomain_019f4c3a-140b-72f7-8fe4-fbaddc73d186_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f4c3a-140b-7e1a-972f-4c57a44c102f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MeasurementAxis_019f4c3a-140b-72f7-8fe4-fbaddc73d186" xlink:to="loc_ifrs-full_MeasurementDomain_019f4c3a-140b-7e1a-972f-4c57a44c102f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecurringFairValueMeasurementMember_019f4c3a-140b-74ed-be65-23f2b65a7824" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecurringFairValueMeasurementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_019f4c3a-140b-7e1a-972f-4c57a44c102f" xlink:to="loc_ifrs-full_RecurringFairValueMeasurementMember_019f4c3a-140b-74ed-be65-23f2b65a7824" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsAxis_019f4c3a-140b-7b4e-bda8-98fc5b88c009" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_UnobservableInputsAxis_019f4c3a-140b-7b4e-bda8-98fc5b88c009" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7b4e-bda8-98fc5b88c009_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_UnobservableInputsAxis_019f4c3a-140b-7b4e-bda8-98fc5b88c009" xlink:to="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7b4e-bda8-98fc5b88c009_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_UnobservableInputsAxis_019f4c3a-140b-7b4e-bda8-98fc5b88c009" xlink:to="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditSpreadMeasurementInputMember_019f4c3a-140b-7c3a-aa0f-6f28805a5270" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditSpreadMeasurementInputMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:to="loc_ifrs-full_CreditSpreadMeasurementInputMember_019f4c3a-140b-7c3a-aa0f-6f28805a5270" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_HousePriceIndexMember_019f4c3a-140b-7666-b2fc-897ec024e8c4" xlink:href="lbk-20260630.xsd#lbk_HousePriceIndexMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:to="loc_lbk_HousePriceIndexMember_019f4c3a-140b-7666-b2fc-897ec024e8c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_PriceMeasurementInputMember_019fa8eb-71fc-7396-bddc-3988fa3987bc" xlink:href="lbk-20260630.xsd#lbk_PriceMeasurementInputMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:to="loc_lbk_PriceMeasurementInputMember_019fa8eb-71fc-7396-bddc-3988fa3987bc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InterestRateVolatilityMember_019f4c3a-140b-74c9-84b5-fe7995e6964e" xlink:href="lbk-20260630.xsd#lbk_InterestRateVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_UnobservableInputsDomain_019f4c3a-140b-7395-b4db-c626ad28e95c" xlink:to="loc_lbk_InterestRateVolatilityMember_019f4c3a-140b-74c9-84b5-fe7995e6964e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c3a-140b-747c-84ba-e46c8e82d756" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c3a-140b-747c-84ba-e46c8e82d756" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-747c-84ba-e46c8e82d756_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c3a-140b-747c-84ba-e46c8e82d756" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-747c-84ba-e46c8e82d756_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-793d-843b-42bf42fa1c7d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f4c3a-140b-747c-84ba-e46c8e82d756" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-793d-843b-42bf42fa1c7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f4c3a-140b-7589-9065-c8ee03e5be4d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-793d-843b-42bf42fa1c7d" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f4c3a-140b-7589-9065-c8ee03e5be4d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember_019f4c3a-140b-7d2e-9333-18cbc01ccb21" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f4c3a-140b-793d-843b-42bf42fa1c7d" xlink:to="loc_ifrs-full_DerivativesMember_019f4c3a-140b-7d2e-9333-18cbc01ccb21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_019f128b-a24a-73c9-a5f6-ceb8597b8965" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ec1-a274-970c0bef1091" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019f4c3a-140b-7ff9-8bb6-79b9b9e04e81" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ec1-a274-970c0bef1091" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SecuritisationsMember_019f4c3a-140b-7870-bf25-7185b6b7301e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SecuritisationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ec1-a274-970c0bef1091" xlink:to="loc_ifrs-full_SecuritisationsMember_019f4c3a-140b-7870-bf25-7185b6b7301e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InterestRateDerivativeMember_019f4c3a-140b-7bc5-ab5e-deca017aed93" xlink:href="lbk-20260630.xsd#lbk_InterestRateDerivativeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ec1-a274-970c0bef1091" xlink:to="loc_lbk_InterestRateDerivativeMember_019f4c3a-140b-7bc5-ab5e-deca017aed93" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SharedAppreciationRightsMember_019f84ae-3ba2-77bb-8031-77ec22d84ea1" xlink:href="lbk-20260630.xsd#lbk_SharedAppreciationRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019f4c3a-140b-7ec1-a274-970c0bef1091" xlink:to="loc_lbk_SharedAppreciationRightsMember_019f84ae-3ba2-77bb-8031-77ec22d84ea1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c3a-140b-75bc-b496-cf882bcff3b0" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets_019f4c3a-140b-716f-89fd-374f5a1e05a6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputAssets_019f4c3a-140b-716f-89fd-374f5a1e05a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets_019f4c3a-140b-730a-b752-5b878aafc155" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputAssets_019f4c3a-140b-730a-b752-5b878aafc155" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets_019f4c3a-140b-79c8-8014-2e22d055d891" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputAssets_019f4c3a-140b-79c8-8014-2e22d055d891" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputAssets_019f4c3a-140b-73d8-b3af-fe287c69e2c3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyAssetsAbstract_019f4c3c-9984-7950-978e-6b49000feb6d" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputAssets_019f4c3a-140b-73d8-b3af-fe287c69e2c3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_019f4c3a-140b-75bc-b496-cf882bcff3b0" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputLiabilities_019f4c3a-140b-722c-9f03-4c8648c50d3f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputLiabilities_019f4c3a-140b-722c-9f03-4c8648c50d3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputLiabilities_019f4c3a-140b-7b3a-865a-78bc67ff2536" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInUnobservableInputLiabilities_019f4c3a-140b-7b3a-865a-78bc67ff2536" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputLiabilities_019f4c3a-140b-73dc-b9f5-9984fb65f677" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputLiabilities_019f4c3a-140b-73dc-b9f5-9984fb65f677" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputLiabilities_019f4c3a-140b-77df-8819-af8c9816af5a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementForSensitivityAnalysesInWhichInputsAreChangedIndividuallyLiabilitiesAbstract_019f4c3c-f52f-748c-abbe-4c66dc57b44a" xlink:to="loc_ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleDecreaseInUnobservableInputLiabilities_019f4c3a-140b-77df-8819-af8c9816af5a" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofCarryingValuesandFairValuesofFinancialAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#FairvaluesoffinancialassetsandliabilitiesScheduleofCarryingValuesandFairValuesofFinancialAssetsandLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/FairvaluesoffinancialassetsandliabilitiesScheduleofCarryingValuesandFairValuesofFinancialAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesLineItems_019f128b-a24a-7d0d-b4e0-41e4f5f0e081" xlink:href="lbk-20260630.xsd#lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesTable_019f128b-a24a-7b84-8f01-687cefca5cc9" xlink:href="lbk-20260630.xsd#lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesLineItems_019f128b-a24a-7d0d-b4e0-41e4f5f0e081" xlink:to="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesTable_019f128b-a24a-7b84-8f01-687cefca5cc9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementAxis_019f128b-a24a-7f83-9dd5-988c31ba4b7c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesTable_019f128b-a24a-7b84-8f01-687cefca5cc9" xlink:to="loc_ifrs-full_MeasurementAxis_019f128b-a24a-7f83-9dd5-988c31ba4b7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f128b-a24a-7f83-9dd5-988c31ba4b7c_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MeasurementAxis_019f128b-a24a-7f83-9dd5-988c31ba4b7c" xlink:to="loc_ifrs-full_MeasurementDomain_019f128b-a24a-7f83-9dd5-988c31ba4b7c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain_019f128b-a24a-72ee-b687-777605ad79ba" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MeasurementAxis_019f128b-a24a-7f83-9dd5-988c31ba4b7c" xlink:to="loc_ifrs-full_MeasurementDomain_019f128b-a24a-72ee-b687-777605ad79ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossCarryingAmountMember_019f128b-a24a-75c2-bbfb-3aa9dc7f7efd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_019f128b-a24a-72ee-b687-777605ad79ba" xlink:to="loc_ifrs-full_GrossCarryingAmountMember_019f128b-a24a-75c2-bbfb-3aa9dc7f7efd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AtFairValueMember_019f128b-a24a-74e7-af5e-15d825aabc9f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtFairValueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_019f128b-a24a-72ee-b687-777605ad79ba" xlink:to="loc_ifrs-full_AtFairValueMember_019f128b-a24a-74e7-af5e-15d825aabc9f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:href="lbk-20260630.xsd#lbk_FinancialAssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesLineItems_019f128b-a24a-7d0d-b4e0-41e4f5f0e081" xlink:to="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToBanks_019f128b-a24a-7f08-8187-ef8307852d92" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:to="loc_ifrs-full_LoansAndAdvancesToBanks_019f128b-a24a-7f08-8187-ef8307852d92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToCustomers_019f128b-a24a-7b1f-8bbf-3603e12cab2e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:to="loc_ifrs-full_LoansAndAdvancesToCustomers_019f128b-a24a-7b1f-8bbf-3603e12cab2e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019f128b-a24a-7c01-bec6-5c9a2fe551b3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:to="loc_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019f128b-a24a-7c01-bec6-5c9a2fe551b3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsHeld_019f128b-a24a-7b8b-b44c-7ac0a2372785" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:to="loc_ifrs-full_DebtInstrumentsHeld_019f128b-a24a-7b8b-b44c-7ac0a2372785" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties_019f128b-a24a-7278-9f0c-c96f55376e65" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialAssetsAbstract_019f128b-a24a-7242-ada6-286760b6f3fd" xlink:to="loc_ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties_019f128b-a24a-7278-9f0c-c96f55376e65" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:href="lbk-20260630.xsd#lbk_FinancialLiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_DisclosureOfFairValueMeasurementOfFinancialAssetsAndFinancialLiabilitiesLineItems_019f128b-a24a-7d0d-b4e0-41e4f5f0e081" xlink:to="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromBanks_019f128b-a24a-75dd-92d0-39a96b66a87d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_DepositsFromBanks_019f128b-a24a-75dd-92d0-39a96b66a87d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromCustomers_019f128b-a24a-77f8-8bff-21d18589f6d6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromCustomers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_DepositsFromCustomers_019f128b-a24a-77f8-8bff-21d18589f6d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019f128b-a24a-7ce3-8560-1b4ca6c2b14a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019f128b-a24a-7ce3-8560-1b4ca6c2b14a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_019f128b-a24a-7482-b888-2ead15252b0a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_019f128b-a24a-7482-b888-2ead15252b0a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost_019f128b-a24a-7a31-b0f6-849e4ee41e70" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsIssuedAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost_019f128b-a24a-7a31-b0f6-849e4ee41e70" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilities_019f128b-a24a-7866-88ab-20533776d2a1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_FinancialLiabilitiesAbstract_019f128b-a24a-7dcb-8580-ff4044bb9a8f" xlink:to="loc_ifrs-full_SubordinatedLiabilities_019f128b-a24a-7866-88ab-20533776d2a1" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofApplicationofJudgementinAdjustmentstoModelledECLDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#AllowanceforexpectedcreditlossesDisclosureofApplicationofJudgementinAdjustmentstoModelledECLDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofApplicationofJudgementinAdjustmentstoModelledECLDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-7dd1-80cb-56ee1c398746" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable_019f128b-a24a-7f6f-bcef-9c5e69c55178" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-7dd1-80cb-56ee1c398746" xlink:to="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable_019f128b-a24a-7f6f-bcef-9c5e69c55178" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-7ace-90f9-6f9e001bfabf" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable_019f128b-a24a-7f6f-bcef-9c5e69c55178" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-7ace-90f9-6f9e001bfabf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7ace-90f9-6f9e001bfabf_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-7ace-90f9-6f9e001bfabf" xlink:to="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7ace-90f9-6f9e001bfabf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7ddd-8358-de1f5ec5c9ec" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-7ace-90f9-6f9e001bfabf" xlink:to="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7ddd-8358-de1f5ec5c9ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedImpairmentMember_019f128b-a24a-78c1-8d6a-ec8704ffe6c8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7ddd-8358-de1f5ec5c9ec" xlink:to="loc_ifrs-full_AccumulatedImpairmentMember_019f128b-a24a-78c1-8d6a-ec8704ffe6c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-70f6-826f-a8e9d2ce3c85" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable_019f128b-a24a-7f6f-bcef-9c5e69c55178" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-70f6-826f-a8e9d2ce3c85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-70f6-826f-a8e9d2ce3c85_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-70f6-826f-a8e9d2ce3c85" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-70f6-826f-a8e9d2ce3c85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-70f6-826f-a8e9d2ce3c85" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MortgagesMember_019f128b-a24a-7d2a-8723-3596a802377c" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MortgagesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:to="loc_ifrs-full_MortgagesMember_019f128b-a24a-7d2a-8723-3596a802377c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CreditCardsMember_019f128b-a24a-7615-9cfc-3df2777a52cf" xlink:href="lbk-20260630.xsd#lbk_CreditCardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:to="loc_lbk_CreditCardsMember_019f128b-a24a-7615-9cfc-3df2777a52cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RetailOtherMember_019f128b-a24a-7252-aa34-746932332b37" xlink:href="lbk-20260630.xsd#lbk_RetailOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:to="loc_lbk_RetailOtherMember_019f128b-a24a-7252-aa34-746932332b37" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CommercialBankingMember_019f128b-a24a-7447-82f4-4906574b04e0" xlink:href="lbk-20260630.xsd#lbk_CommercialBankingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:to="loc_lbk_CommercialBankingMember_019f128b-a24a-7447-82f4-4906574b04e0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherFinancialAssetsMember_019f128b-a24a-7295-9f88-79ca005a3148" xlink:href="lbk-20260630.xsd#lbk_OtherFinancialAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-741d-9474-084420de1a13" xlink:to="loc_lbk_OtherFinancialAssetsMember_019f128b-a24a-7295-9f88-79ca005a3148" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7921-b7ca-85806fc489dc" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsTable_019f128b-a24a-7f6f-bcef-9c5e69c55178" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7921-b7ca-85806fc489dc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7921-b7ca-85806fc489dc_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7921-b7ca-85806fc489dc" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7921-b7ca-85806fc489dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7921-b7ca-85806fc489dc" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember_019f128b-a24a-7b9a-9e31-0afabef66e6d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:to="loc_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember_019f128b-a24a-7b9a-9e31-0afabef66e6d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember_019f128b-a24a-7ba4-a3df-a9a41e66f387" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:to="loc_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember_019f128b-a24a-7ba4-a3df-a9a41e66f387" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherJudgementsNettingMember_019f128b-a24a-789c-b988-4ee449de237d" xlink:href="lbk-20260630.xsd#lbk_OtherJudgementsNettingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:to="loc_lbk_OtherJudgementsNettingMember_019f128b-a24a-789c-b988-4ee449de237d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember_019f128b-a24a-7b77-a008-a90f7d0926f7" xlink:href="lbk-20260630.xsd#lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7840-af98-463b1bdb0bf8" xlink:to="loc_lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember_019f128b-a24a-7b77-a008-a90f7d0926f7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f128b-a24a-7432-b7b0-063bc4ae0dc6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-7dd1-80cb-56ee1c398746" xlink:to="loc_ifrs-full_FinancialAssets_019f128b-a24a-7432-b7b0-063bc4ae0dc6" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesNarrativeDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#AllowanceforexpectedcreditlossesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_AllowanceForImpairmentLossesLineItems_019f36ef-33b0-7956-9622-9c9275ed8b95" xlink:href="lbk-20260630.xsd#lbk_AllowanceForImpairmentLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:href="lbk-20260630.xsd#lbk_AllowanceForImpairmentLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f36ef-33b0-7956-9622-9c9275ed8b95" xlink:to="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f36ef-33b0-788e-b160-1302b43899a5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f36ef-33b0-788e-b160-1302b43899a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f36ef-33b0-788e-b160-1302b43899a5_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f36ef-33b0-788e-b160-1302b43899a5" xlink:to="loc_ifrs-full_CarryingAmountMember_019f36ef-33b0-788e-b160-1302b43899a5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f36ef-33b0-7ec2-bef5-cb4e8fa928e3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f36ef-33b0-788e-b160-1302b43899a5" xlink:to="loc_ifrs-full_CarryingAmountMember_019f36ef-33b0-7ec2-bef5-cb4e8fa928e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedImpairmentMember_019f36ef-33b0-7d3c-84fe-6adf7d75c2b7" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_019f36ef-33b0-7ec2-bef5-cb4e8fa928e3" xlink:to="loc_ifrs-full_AccumulatedImpairmentMember_019f36ef-33b0-7d3c-84fe-6adf7d75c2b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f36ef-33b0-701c-97a7-b3f273fa51d4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f36ef-33b0-701c-97a7-b3f273fa51d4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-701c-97a7-b3f273fa51d4_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f36ef-33b0-701c-97a7-b3f273fa51d4" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-701c-97a7-b3f273fa51d4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f36ef-33b0-701c-97a7-b3f273fa51d4" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MortgagesMember_019f36ef-33b0-70a3-a0f9-d430d61bf793" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MortgagesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:to="loc_ifrs-full_MortgagesMember_019f36ef-33b0-70a3-a0f9-d430d61bf793" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CreditCardsMember_019f36ef-33b0-7f8c-bd80-1c2151bede17" xlink:href="lbk-20260630.xsd#lbk_CreditCardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:to="loc_lbk_CreditCardsMember_019f36ef-33b0-7f8c-bd80-1c2151bede17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RetailOtherMember_019f36ef-33b0-73f8-bf75-862c5176b923" xlink:href="lbk-20260630.xsd#lbk_RetailOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:to="loc_lbk_RetailOtherMember_019f36ef-33b0-73f8-bf75-862c5176b923" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CommercialBankingMember_019f36ef-6c85-7729-a043-96e3d790c45c" xlink:href="lbk-20260630.xsd#lbk_CommercialBankingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:to="loc_lbk_CommercialBankingMember_019f36ef-6c85-7729-a043-96e3d790c45c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_MotorFinanceMember_019f36fc-4df2-7116-8e07-2c565a236d0f" xlink:href="lbk-20260630.xsd#lbk_MotorFinanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f36ef-33b0-791c-93c1-1db2285a4eb4" xlink:to="loc_lbk_MotorFinanceMember_019f36fc-4df2-7116-8e07-2c565a236d0f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f36ef-33b0-7fc9-88c3-58d794424082" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f36ef-33b0-7fc9-88c3-58d794424082" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-7fc9-88c3-58d794424082_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f36ef-33b0-7fc9-88c3-58d794424082" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-7fc9-88c3-58d794424082_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-70ae-be53-38c316f380a6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f36ef-33b0-7fc9-88c3-58d794424082" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-70ae-be53-38c316f380a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherJudgementsNettingMember_019f36ef-33b0-736a-9bed-241c57833f0f" xlink:href="lbk-20260630.xsd#lbk_OtherJudgementsNettingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-70ae-be53-38c316f380a6" xlink:to="loc_lbk_OtherJudgementsNettingMember_019f36ef-33b0-736a-9bed-241c57833f0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ResidualValueImpairmentAndVoluntaryTerminationsMember_019f36fc-4df2-7895-a413-b7810fab9e3b" xlink:href="lbk-20260630.xsd#lbk_ResidualValueImpairmentAndVoluntaryTerminationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f36ef-33b0-70ae-be53-38c316f380a6" xlink:to="loc_lbk_ResidualValueImpairmentAndVoluntaryTerminationsMember_019f36fc-4df2-7895-a413-b7810fab9e3b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresAxis_019f36ef-33b0-7e45-90f6-3b18f8bb64a4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7989-ad03-a0421ef8d16c" xlink:to="loc_ifrs-full_RiskExposuresAxis_019f36ef-33b0-7e45-90f6-3b18f8bb64a4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7e45-90f6-3b18f8bb64a4_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RiskExposuresAxis_019f36ef-33b0-7e45-90f6-3b18f8bb64a4" xlink:to="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7e45-90f6-3b18f8bb64a4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RiskExposuresAxis_019f36ef-33b0-7e45-90f6-3b18f8bb64a4" xlink:to="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RepossessionRiskMember_019f36ef-33b0-7e33-a088-de5f49d94a61" xlink:href="lbk-20260630.xsd#lbk_RepossessionRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_RepossessionRiskMember_019f36ef-33b0-7e33-a088-de5f49d94a61" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_MortgageAccountsInSpecificSegmentsMember_019f36ef-33b0-7289-b246-c311c609bc29" xlink:href="lbk-20260630.xsd#lbk_MortgageAccountsInSpecificSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_MortgageAccountsInSpecificSegmentsMember_019f36ef-33b0-7289-b246-c311c609bc29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ExtensionOfModelledLifetimeOnRetailRevolvingProductsMember_019f36ef-33b0-793d-be14-18df8e538288" xlink:href="lbk-20260630.xsd#lbk_ExtensionOfModelledLifetimeOnRetailRevolvingProductsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_ExtensionOfModelledLifetimeOnRetailRevolvingProductsMember_019f36ef-33b0-793d-be14-18df8e538288" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_LossGivenDefaultAlignmentLGDMember_019f36ef-6c85-7edf-9f64-a9d06459ea60" xlink:href="lbk-20260630.xsd#lbk_LossGivenDefaultAlignmentLGDMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_LossGivenDefaultAlignmentLGDMember_019f36ef-6c85-7edf-9f64-a9d06459ea60" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CorporateInsolvencyRatesMember_019f36ef-6c85-7fc9-8b38-fd955068edb1" xlink:href="lbk-20260630.xsd#lbk_CorporateInsolvencyRatesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_CorporateInsolvencyRatesMember_019f36ef-6c85-7fc9-8b38-fd955068edb1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_GlobalTariffAndPoliticalDisruptionRisksMember_019f36ef-6c85-7632-82b6-ee1b1b5d3a60" xlink:href="lbk-20260630.xsd#lbk_GlobalTariffAndPoliticalDisruptionRisksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f36ef-33b0-7429-a4f1-dd9f4c2da41a" xlink:to="loc_lbk_GlobalTariffAndPoliticalDisruptionRisksMember_019f36ef-6c85-7632-82b6-ee1b1b5d3a60" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f36ef-33b0-7054-8527-41d0427bea07" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f36ef-33b0-7956-9622-9c9275ed8b95" xlink:to="loc_ifrs-full_FinancialAssets_019f36ef-33b0-7054-8527-41d0427bea07" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofGenerationofMultipleEconomicAssumptionsbyQuarterandbyYearDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#AllowanceforexpectedcreditlossesDisclosureofGenerationofMultipleEconomicAssumptionsbyQuarterandbyYearDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofGenerationofMultipleEconomicAssumptionsbyQuarterandbyYearDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:href="lbk-20260630.xsd#lbk_AllowanceForImpairmentLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:href="lbk-20260630.xsd#lbk_AllowanceForImpairmentLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_EconomicAssumptionPeriodAxis_019f128b-a24a-77d7-8f23-fcb06768700d" xlink:href="lbk-20260630.xsd#lbk_EconomicAssumptionPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:to="loc_lbk_EconomicAssumptionPeriodAxis_019f128b-a24a-77d7-8f23-fcb06768700d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-77d7-8f23-fcb06768700d_default" xlink:href="lbk-20260630.xsd#lbk_EconomicAssumptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_lbk_EconomicAssumptionPeriodAxis_019f128b-a24a-77d7-8f23-fcb06768700d" xlink:to="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-77d7-8f23-fcb06768700d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:href="lbk-20260630.xsd#lbk_EconomicAssumptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_lbk_EconomicAssumptionPeriodAxis_019f128b-a24a-77d7-8f23-fcb06768700d" xlink:to="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:href="lbk-20260630.xsd#lbk_CurrentReportingYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:to="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CurrentYearQuarterOneMember_019f128b-a24a-7fb3-8352-640b14addeab" xlink:href="lbk-20260630.xsd#lbk_CurrentYearQuarterOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:to="loc_lbk_CurrentYearQuarterOneMember_019f128b-a24a-7fb3-8352-640b14addeab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CurrentYearQuarterTwoMember_019f128b-a24a-7750-b3fc-527faaee1591" xlink:href="lbk-20260630.xsd#lbk_CurrentYearQuarterTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:to="loc_lbk_CurrentYearQuarterTwoMember_019f128b-a24a-7750-b3fc-527faaee1591" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CurrentYearQuarterThreeMember_019f128b-a24a-7821-97ef-d30951e61449" xlink:href="lbk-20260630.xsd#lbk_CurrentYearQuarterThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:to="loc_lbk_CurrentYearQuarterThreeMember_019f128b-a24a-7821-97ef-d30951e61449" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CurrentYearQuarterFourMember_019f128b-a24a-7edc-b645-27d82e170848" xlink:href="lbk-20260630.xsd#lbk_CurrentYearQuarterFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_CurrentReportingYearMember_019f128b-a24a-79e6-ae6f-453619a4afd1" xlink:to="loc_lbk_CurrentYearQuarterFourMember_019f128b-a24a-7edc-b645-27d82e170848" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:href="lbk-20260630.xsd#lbk_OneYearAfterReportingYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:to="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OneYearAfterReportingYearQuarterOneMember_019f128b-a24a-7e9a-b0c0-c61cc965548d" xlink:href="lbk-20260630.xsd#lbk_OneYearAfterReportingYearQuarterOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:to="loc_lbk_OneYearAfterReportingYearQuarterOneMember_019f128b-a24a-7e9a-b0c0-c61cc965548d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OneYearAfterReportingYearQuarterTwoMember_019f128b-a24a-713c-91c0-5e30f40fdf87" xlink:href="lbk-20260630.xsd#lbk_OneYearAfterReportingYearQuarterTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:to="loc_lbk_OneYearAfterReportingYearQuarterTwoMember_019f128b-a24a-713c-91c0-5e30f40fdf87" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OneYearAfterReportingYearQuarterThreeMember_019f128b-a24a-739d-ae72-c9f2fd3c1356" xlink:href="lbk-20260630.xsd#lbk_OneYearAfterReportingYearQuarterThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:to="loc_lbk_OneYearAfterReportingYearQuarterThreeMember_019f128b-a24a-739d-ae72-c9f2fd3c1356" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OneYearAfterReportingYearQuarterFourMember_019f128b-a24a-75a4-99d3-f9aee9f3e44e" xlink:href="lbk-20260630.xsd#lbk_OneYearAfterReportingYearQuarterFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_OneYearAfterReportingYearMember_019f128b-a24a-7b2e-9b86-10260e5ed356" xlink:to="loc_lbk_OneYearAfterReportingYearQuarterFourMember_019f128b-a24a-75a4-99d3-f9aee9f3e44e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_TwoYearsAfterReportingYearMember_019f128b-a24a-76d6-bf5a-f880ae34e869" xlink:href="lbk-20260630.xsd#lbk_TwoYearsAfterReportingYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:to="loc_lbk_TwoYearsAfterReportingYearMember_019f128b-a24a-76d6-bf5a-f880ae34e869" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ThreeYearsAfterReportingYearMember_019f128b-a24a-74a6-9521-ba77115b05b2" xlink:href="lbk-20260630.xsd#lbk_ThreeYearsAfterReportingYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:to="loc_lbk_ThreeYearsAfterReportingYearMember_019f128b-a24a-74a6-9521-ba77115b05b2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_FourYearsAfterReportingYearMember_019f128b-a24a-73f8-b53f-524c16c56a58" xlink:href="lbk-20260630.xsd#lbk_FourYearsAfterReportingYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_EconomicAssumptionPeriodDomain_019f128b-a24a-7af7-a89e-57812fa8b7ac" xlink:to="loc_lbk_FourYearsAfterReportingYearMember_019f128b-a24a-73f8-b53f-524c16c56a58" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProbabilityOfDefaultAxis_019f128b-a24a-759c-9256-4dbf7c32abc4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProbabilityOfDefaultAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:to="loc_ifrs-full_ProbabilityOfDefaultAxis_019f128b-a24a-759c-9256-4dbf7c32abc4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-759c-9256-4dbf7c32abc4_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProbabilityOfDefaultDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ProbabilityOfDefaultAxis_019f128b-a24a-759c-9256-4dbf7c32abc4" xlink:to="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-759c-9256-4dbf7c32abc4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProbabilityOfDefaultDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ProbabilityOfDefaultAxis_019f128b-a24a-759c-9256-4dbf7c32abc4" xlink:to="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_UpsideMember_019f128b-a24a-74e5-ad2e-484fe508eb7c" xlink:href="lbk-20260630.xsd#lbk_UpsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:to="loc_lbk_UpsideMember_019f128b-a24a-74e5-ad2e-484fe508eb7c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_BaseCaseMember_019f128b-a24a-7816-8fb0-bbeabf41dddd" xlink:href="lbk-20260630.xsd#lbk_BaseCaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:to="loc_lbk_BaseCaseMember_019f128b-a24a-7816-8fb0-bbeabf41dddd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DownsideMember_019f128b-a24a-786c-a8ca-fb0f0241dc38" xlink:href="lbk-20260630.xsd#lbk_DownsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:to="loc_lbk_DownsideMember_019f128b-a24a-786c-a8ca-fb0f0241dc38" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SevereDownsideMember_019f128b-a24a-74d9-acd5-ba17c0dba486" xlink:href="lbk-20260630.xsd#lbk_SevereDownsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:to="loc_lbk_SevereDownsideMember_019f128b-a24a-74d9-acd5-ba17c0dba486" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ProbabilityWeightedMember_019f128b-a24a-7183-a879-ad3831c4ac2b" xlink:href="lbk-20260630.xsd#lbk_ProbabilityWeightedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain_019f128b-a24a-71be-9b0a-e7a73f1f427e" xlink:to="loc_lbk_ProbabilityWeightedMember_019f128b-a24a-7183-a879-ad3831c4ac2b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f128b-a24a-7886-8e8a-6383c0db4b64" 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_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:to="loc_srt_RangeAxis_019f128b-a24a-7886-8e8a-6383c0db4b64" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f128b-a24a-7886-8e8a-6383c0db4b64_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_019f128b-a24a-7886-8e8a-6383c0db4b64" xlink:to="loc_srt_RangeMember_019f128b-a24a-7886-8e8a-6383c0db4b64_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f128b-a24a-7e44-96ea-43eeb2db73a9" 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_019f128b-a24a-7886-8e8a-6383c0db4b64" xlink:to="loc_srt_RangeMember_019f128b-a24a-7e44-96ea-43eeb2db73a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageMember_019f128b-a24a-774a-979d-42a90334bc2a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f128b-a24a-7e44-96ea-43eeb2db73a9" xlink:to="loc_ifrs-full_WeightedAverageMember_019f128b-a24a-774a-979d-42a90334bc2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RateVariableAxis_019f128b-a24a-71a0-922c-5ccabf73ce70" xlink:href="lbk-20260630.xsd#lbk_RateVariableAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_AllowanceForImpairmentLossesTable_019f128b-a24a-7268-8ddb-e3cb5cae2156" xlink:to="loc_lbk_RateVariableAxis_019f128b-a24a-71a0-922c-5ccabf73ce70" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RateVariableDomain_019f128b-a24a-71a0-922c-5ccabf73ce70_default" xlink:href="lbk-20260630.xsd#lbk_RateVariableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_lbk_RateVariableAxis_019f128b-a24a-71a0-922c-5ccabf73ce70" xlink:to="loc_lbk_RateVariableDomain_019f128b-a24a-71a0-922c-5ccabf73ce70_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:href="lbk-20260630.xsd#lbk_RateVariableDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_lbk_RateVariableAxis_019f128b-a24a-71a0-922c-5ccabf73ce70" xlink:to="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_UpsideMember_019f128b-a24a-7811-85ec-539180babc70" xlink:href="lbk-20260630.xsd#lbk_UpsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:to="loc_lbk_UpsideMember_019f128b-a24a-7811-85ec-539180babc70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_BaseCaseMember_019f128b-a24a-7271-a30f-47d88144d274" xlink:href="lbk-20260630.xsd#lbk_BaseCaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:to="loc_lbk_BaseCaseMember_019f128b-a24a-7271-a30f-47d88144d274" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DownsideMember_019f128b-a24a-7da8-b9d7-03facf062558" xlink:href="lbk-20260630.xsd#lbk_DownsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:to="loc_lbk_DownsideMember_019f128b-a24a-7da8-b9d7-03facf062558" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SevereDownsideMember_019f128b-a24a-7b82-b27d-2d883b038a12" xlink:href="lbk-20260630.xsd#lbk_SevereDownsideMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:to="loc_lbk_SevereDownsideMember_019f128b-a24a-7b82-b27d-2d883b038a12" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ProbabilityWeightedMember_019f128b-a24a-742c-8fc0-d05405c8d85a" xlink:href="lbk-20260630.xsd#lbk_ProbabilityWeightedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_RateVariableDomain_019f128b-a24a-7bef-a615-112df73f5bcd" xlink:to="loc_lbk_ProbabilityWeightedMember_019f128b-a24a-742c-8fc0-d05405c8d85a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfGrossDomesticProductGrowth_019f128b-a24a-7030-9ad0-3cc127921d66" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfGrossDomesticProductGrowth"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfGrossDomesticProductGrowth_019f128b-a24a-7030-9ad0-3cc127921d66" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfUnemploymentRate_019f128b-a24a-7c7b-b7b5-0a346688acfc" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfUnemploymentRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfUnemploymentRate_019f128b-a24a-7c7b-b7b5-0a346688acfc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfHousePriceGrowth_019f128b-a24a-7747-894d-4bbdf487b233" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfHousePriceGrowth"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfHousePriceGrowth_019f128b-a24a-7747-894d-4bbdf487b233" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfCommercialRealEstatePriceGrowth_019f128b-a24a-7a69-becc-79d5e9513775" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfCommercialRealEstatePriceGrowth"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfCommercialRealEstatePriceGrowth_019f128b-a24a-7a69-becc-79d5e9513775" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfInterestRate_019f128b-a24a-7ff3-904f-447437f85637" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfInterestRate_019f128b-a24a-7ff3-904f-447437f85637" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_KeyAssumptionOfCPIInflation_019f128b-a24a-715b-b2fc-d729ac8f5f23" xlink:href="lbk-20260630.xsd#lbk_KeyAssumptionOfCPIInflation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_AllowanceForImpairmentLossesLineItems_019f128b-a24a-7c0c-8a58-d61ec60d0dfb" xlink:to="loc_lbk_KeyAssumptionOfCPIInflation_019f128b-a24a-715b-b2fc-d729ac8f5f23" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofmovementinexpectedcreditlossallowanceDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#AllowanceforexpectedcreditlossesDisclosureofmovementinexpectedcreditlossallowanceDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/AllowanceforexpectedcreditlossesDisclosureofmovementinexpectedcreditlossallowanceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019f128b-a24a-77ca-88c4-8d700ee27b24" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:to="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019f128b-a24a-77ca-88c4-8d700ee27b24" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-751c-85f8-655a3bac8ef3" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019f128b-a24a-77ca-88c4-8d700ee27b24" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-751c-85f8-655a3bac8ef3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-751c-85f8-655a3bac8ef3_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-751c-85f8-655a3bac8ef3" xlink:to="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-751c-85f8-655a3bac8ef3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7231-a74a-06495bab1276" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019f128b-a24a-751c-85f8-655a3bac8ef3" xlink:to="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7231-a74a-06495bab1276" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedImpairmentMember_019f128b-a24a-7b24-bda0-92747ba6b57b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_019f128b-a24a-7231-a74a-06495bab1276" xlink:to="loc_ifrs-full_AccumulatedImpairmentMember_019f128b-a24a-7b24-bda0-92747ba6b57b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-7ab2-b3f7-048ed317caa6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019f128b-a24a-77ca-88c4-8d700ee27b24" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-7ab2-b3f7-048ed317caa6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-7ab2-b3f7-048ed317caa6_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-7ab2-b3f7-048ed317caa6" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-7ab2-b3f7-048ed317caa6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_019f128b-a24a-7ab2-b3f7-048ed317caa6" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MortgagesMember_019f128b-a24a-74d9-8a08-0bf1583c520a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MortgagesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_ifrs-full_MortgagesMember_019f128b-a24a-74d9-8a08-0bf1583c520a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CreditCardsMember_019f128b-a24a-7682-a8ae-f2e6cd7a64fc" xlink:href="lbk-20260630.xsd#lbk_CreditCardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_lbk_CreditCardsMember_019f128b-a24a-7682-a8ae-f2e6cd7a64fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_RetailOtherMember_019f128b-a24a-7776-b623-cc75f994390b" xlink:href="lbk-20260630.xsd#lbk_RetailOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_lbk_RetailOtherMember_019f128b-a24a-7776-b623-cc75f994390b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_Retail1Member_019f128b-a24a-72ca-b524-14c09c0015d0" xlink:href="lbk-20260630.xsd#lbk_Retail1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_lbk_Retail1Member_019f128b-a24a-72ca-b524-14c09c0015d0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CommercialBankingMember_019f128b-a24a-7f94-a3f0-10170d5b501d" xlink:href="lbk-20260630.xsd#lbk_CommercialBankingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_lbk_CommercialBankingMember_019f128b-a24a-7f94-a3f0-10170d5b501d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherFinancialAssetsMember_019f128b-a24a-7829-941c-41c35d4dbd21" xlink:href="lbk-20260630.xsd#lbk_OtherFinancialAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_019f128b-a24a-77fe-ace1-dadea9e2d081" xlink:to="loc_lbk_OtherFinancialAssetsMember_019f128b-a24a-7829-941c-41c35d4dbd21" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7bad-ad9d-caae66475206" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019f128b-a24a-77ca-88c4-8d700ee27b24" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7bad-ad9d-caae66475206" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7bad-ad9d-caae66475206_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7bad-ad9d-caae66475206" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7bad-ad9d-caae66475206_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7f83-9910-c49979b1f91a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019f128b-a24a-7bad-ad9d-caae66475206" xlink:to="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7f83-9910-c49979b1f91a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember_019f128b-a24a-774a-9263-07597dbca851" xlink:href="lbk-20260630.xsd#lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019f128b-a24a-7f83-9910-c49979b1f91a" xlink:to="loc_lbk_ExpectedCreditLossesIndividuallyAndCollectivelyAssessedIncludingJudgementsAppliedMember_019f128b-a24a-774a-9263-07597dbca851" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f128b-a24a-79e4-ad22-4a254a488aed" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:to="loc_ifrs-full_FinancialAssets_019f128b-a24a-79e4-ad22-4a254a488aed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets_019f128b-a24a-7aae-9c42-14fcf4c38364" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughWriteoffFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:to="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets_019f128b-a24a-7aae-9c42-14fcf4c38364" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_019f128b-a24a-7dae-a723-40f7697ae859" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_019f128b-a24a-7dae-a723-40f7697ae859" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFinancialAssets_019f128b-a24a-7297-b82b-2afe1dbe59be" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfAllowanceAccountForCreditLossesOfFinancialAssetsLineItems_019f128b-a24a-78e6-bf82-98c06ecd1408" xlink:to="loc_ifrs-full_IncreaseDecreaseInFinancialAssets_019f128b-a24a-7297-b82b-2afe1dbe59be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets_019f128b-a24a-7f0d-a683-4247c55ef746" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/DebtsecuritiesinissueScheduleofDebtSecuritiesinIssueDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#DebtsecuritiesinissueScheduleofDebtSecuritiesinIssueDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/DebtsecuritiesinissueScheduleofDebtSecuritiesinIssueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_019f128b-a24a-78e9-9173-7b9a053a1eb6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_019f128b-a24a-78e9-9173-7b9a053a1eb6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-7032-82d2-31f2d6efe411" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_019f128b-a24a-78e9-9173-7b9a053a1eb6" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-7032-82d2-31f2d6efe411" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7032-82d2-31f2d6efe411_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-7032-82d2-31f2d6efe411" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7032-82d2-31f2d6efe411_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7808-a7e9-7767ff2c86ac" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019f128b-a24a-7032-82d2-31f2d6efe411" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7808-a7e9-7767ff2c86ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7dfd-a0b4-f46b9e9de0cd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7808-a7e9-7767ff2c86ac" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019f128b-a24a-7dfd-a0b4-f46b9e9de0cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_019f128b-a24a-7299-b36a-48d184aecfe6" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019f128b-a24a-7808-a7e9-7767ff2c86ac" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_019f128b-a24a-7299-b36a-48d184aecfe6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotesAndDebenturesIssued_019f128b-a24a-7f29-8922-b0cd9f6f3adb" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotesAndDebenturesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_ifrs-full_NotesAndDebenturesIssued_019f128b-a24a-7f29-8922-b0cd9f6f3adb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BondsIssued_019f128b-a24a-7849-89e3-389cf0da58b2" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BondsIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_ifrs-full_BondsIssued_019f128b-a24a-7849-89e3-389cf0da58b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CommercialPapersIssued_019f128b-a24a-7c21-bc6f-75bf166ff2af" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommercialPapersIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_ifrs-full_CommercialPapersIssued_019f128b-a24a-7c21-bc6f-75bf166ff2af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SecuritisationNotes_019f128b-a24a-7010-bd76-a6568497ffd9" xlink:href="lbk-20260630.xsd#lbk_SecuritisationNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_lbk_SecuritisationNotes_019f128b-a24a-7010-bd76-a6568497ffd9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CertificatesOfDepositIssued_019f128b-a24a-7ce0-a1b6-0b86c983a8c3" xlink:href="lbk-20260630.xsd#lbk_CertificatesOfDepositIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_lbk_CertificatesOfDepositIssued_019f128b-a24a-7ce0-a1b6-0b86c983a8c3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecurities_019f128b-a24a-7e28-84d5-ad26b5d237ef" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019f128b-a24a-764f-8ef8-55eb5f1d3557" xlink:to="loc_ifrs-full_DebtSecurities_019f128b-a24a-7e28-84d5-ad26b5d237ef" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/DebtsecuritiesinissueNarrativeDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#DebtsecuritiesinissueNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/DebtsecuritiesinissueNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems_019f128b-a24a-7039-a6ee-36e563b67b02" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesTable_019f128b-a24a-75f3-9ae1-0b6fc25a494d" xlink:href="lbk-20260630.xsd#lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems_019f128b-a24a-7039-a6ee-36e563b67b02" xlink:to="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesTable_019f128b-a24a-75f3-9ae1-0b6fc25a494d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_TypeOfProgramAxis_019f128b-a24a-77c5-9dcc-1ed67a9dae6f" xlink:href="lbk-20260630.xsd#lbk_TypeOfProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesTable_019f128b-a24a-75f3-9ae1-0b6fc25a494d" xlink:to="loc_lbk_TypeOfProgramAxis_019f128b-a24a-77c5-9dcc-1ed67a9dae6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_TypeOfProgramDomain_019f128b-a24a-77c5-9dcc-1ed67a9dae6f_default" xlink:href="lbk-20260630.xsd#lbk_TypeOfProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_lbk_TypeOfProgramAxis_019f128b-a24a-77c5-9dcc-1ed67a9dae6f" xlink:to="loc_lbk_TypeOfProgramDomain_019f128b-a24a-77c5-9dcc-1ed67a9dae6f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_TypeOfProgramDomain_019f128b-a24a-7f0c-aa7a-505345ec3525" xlink:href="lbk-20260630.xsd#lbk_TypeOfProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_lbk_TypeOfProgramAxis_019f128b-a24a-77c5-9dcc-1ed67a9dae6f" xlink:to="loc_lbk_TypeOfProgramDomain_019f128b-a24a-7f0c-aa7a-505345ec3525" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CoveredBondProgrammeMember_019f128b-a24a-716f-8c30-c5ff9028d5b6" xlink:href="lbk-20260630.xsd#lbk_CoveredBondProgrammeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TypeOfProgramDomain_019f128b-a24a-7f0c-aa7a-505345ec3525" xlink:to="loc_lbk_CoveredBondProgrammeMember_019f128b-a24a-716f-8c30-c5ff9028d5b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_SecuritisationProgrammeMember_019f128b-a24a-7449-81d8-04bf6bb83dae" xlink:href="lbk-20260630.xsd#lbk_SecuritisationProgrammeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_TypeOfProgramDomain_019f128b-a24a-7f0c-aa7a-505345ec3525" xlink:to="loc_lbk_SecuritisationProgrammeMember_019f128b-a24a-7449-81d8-04bf6bb83dae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InstrumentsProvidingSecurityForBonds_019f128b-a24a-73d8-9bf1-f5b00fa97722" xlink:href="lbk-20260630.xsd#lbk_InstrumentsProvidingSecurityForBonds"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems_019f128b-a24a-7039-a6ee-36e563b67b02" xlink:to="loc_lbk_InstrumentsProvidingSecurityForBonds_019f128b-a24a-73d8-9bf1-f5b00fa97722" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_InstrumentsProvidingSecurityForNotes_019f128b-a24a-7e97-afa7-eea28acd0d77" xlink:href="lbk-20260630.xsd#lbk_InstrumentsProvidingSecurityForNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems_019f128b-a24a-7039-a6ee-36e563b67b02" xlink:to="loc_lbk_InstrumentsProvidingSecurityForNotes_019f128b-a24a-7e97-afa7-eea28acd0d77" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_CashDepositsHeldRestrictedInUseToSecuritisationAndCoveredBonds_019f128b-a24a-78d4-b6d4-7fd8f6b92262" xlink:href="lbk-20260630.xsd#lbk_CashDepositsHeldRestrictedInUseToSecuritisationAndCoveredBonds"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lbk_ScheduleOfSecuritisationAndCoveredBondProgrammesLineItems_019f128b-a24a-7039-a6ee-36e563b67b02" xlink:to="loc_lbk_CashDepositsHeldRestrictedInUseToSecuritisationAndCoveredBonds_019f128b-a24a-78d4-b6d4-7fd8f6b92262" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/ProvisionsScheduleofOtherProvisionsDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#ProvisionsScheduleofOtherProvisionsDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/ProvisionsScheduleofOtherProvisionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-773e-b922-7faa53033645" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-773e-b922-7faa53033645" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis_019f128b-a24a-729f-9794-5f35197a8cfd" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-773e-b922-7faa53033645" xlink:to="loc_ifrs-full_ClassesOfProvisionsAxis_019f128b-a24a-729f-9794-5f35197a8cfd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-729f-9794-5f35197a8cfd_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_019f128b-a24a-729f-9794-5f35197a8cfd" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-729f-9794-5f35197a8cfd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-7097-8595-bc99c8782399" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_019f128b-a24a-729f-9794-5f35197a8cfd" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-7097-8595-bc99c8782399" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProvisionForCreditCommitmentsMember_019f128b-a24a-709d-b6b7-afd929937701" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForCreditCommitmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-7097-8595-bc99c8782399" xlink:to="loc_ifrs-full_ProvisionForCreditCommitmentsMember_019f128b-a24a-709d-b6b7-afd929937701" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember_019f128b-a24a-7eac-a6ef-f53b5916d830" xlink:href="lbk-20260630.xsd#lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-7097-8595-bc99c8782399" xlink:to="loc_lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember_019f128b-a24a-7eac-a6ef-f53b5916d830" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherProvisionsMember_019f128b-a24a-77b5-86bd-f3e99575a1c1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherProvisionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f128b-a24a-7097-8595-bc99c8782399" xlink:to="loc_ifrs-full_MiscellaneousOtherProvisionsMember_019f128b-a24a-77b5-86bd-f3e99575a1c1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherProvisions_019f128b-a24a-7a82-82e6-ad472dc90949" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:to="loc_ifrs-full_OtherProvisions_019f128b-a24a-7a82-82e6-ad472dc90949" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IncreaseDecreaseThroughNetExchangeDifferencesAndOtherAdjustmentsProvision_019f128b-a24a-7b58-b6d7-a5b5e99d67bb" xlink:href="lbk-20260630.xsd#lbk_IncreaseDecreaseThroughNetExchangeDifferencesAndOtherAdjustmentsProvision"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:to="loc_lbk_IncreaseDecreaseThroughNetExchangeDifferencesAndOtherAdjustmentsProvision_019f128b-a24a-7b58-b6d7-a5b5e99d67bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProvisionUsedOtherProvisions_019f128b-a24a-7274-9562-9ff8ef386305" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionUsedOtherProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:to="loc_ifrs-full_ProvisionUsedOtherProvisions_019f128b-a24a-7274-9562-9ff8ef386305" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions_019f128b-a24a-7ab1-a35e-e157835cedd6" xlink:href="lbk-20260630.xsd#lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f128b-a24a-7bc9-b296-3c2422665310" xlink:to="loc_lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions_019f128b-a24a-7ab1-a35e-e157835cedd6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherProvisions_019f128b-a24a-70fe-a807-a42d5d396836" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherProvisions"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/ProvisionsNarrativeDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#ProvisionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/ProvisionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f36d0-a90c-7e09-92a8-06ef6fc11a24" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-71fe-9aa4-1629d5a30ec9" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f36d0-a90c-7e09-92a8-06ef6fc11a24" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-71fe-9aa4-1629d5a30ec9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis_019f36d0-a90c-73ec-bf81-15e7e9664601" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable_019f128b-a24a-71fe-9aa4-1629d5a30ec9" xlink:to="loc_ifrs-full_ClassesOfProvisionsAxis_019f36d0-a90c-73ec-bf81-15e7e9664601" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-73ec-bf81-15e7e9664601_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_019f36d0-a90c-73ec-bf81-15e7e9664601" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-73ec-bf81-15e7e9664601_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_019f36d0-a90c-73ec-bf81-15e7e9664601" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember_019f36d1-2416-7789-a446-f0658aac2042" xlink:href="lbk-20260630.xsd#lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:to="loc_lbk_OtherProvisionsForLegalActionsAndRegulatoryMattersMember_019f36d1-2416-7789-a446-f0658aac2042" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_MotorCommissionReviewMember_019f36d0-a90c-7761-b3f7-1fd8157ad885" xlink:href="lbk-20260630.xsd#lbk_MotorCommissionReviewMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:to="loc_lbk_MotorCommissionReviewMember_019f36d0-a90c-7761-b3f7-1fd8157ad885" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_DilapidationsRentReviewsAndOtherPropertyRelatedMattersMember_019f36d0-a90c-7fe3-93ac-b897cc07881f" xlink:href="lbk-20260630.xsd#lbk_DilapidationsRentReviewsAndOtherPropertyRelatedMattersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:to="loc_lbk_DilapidationsRentReviewsAndOtherPropertyRelatedMattersMember_019f36d0-a90c-7fe3-93ac-b897cc07881f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IndemnitiesAndOtherMattersRelatingToLegacyBusinessDisposalsMember_019f36d0-a90c-75c6-82ed-f9f28d82663a" xlink:href="lbk-20260630.xsd#lbk_IndemnitiesAndOtherMattersRelatingToLegacyBusinessDisposalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_019f36d0-a90c-732b-a4eb-daf17921541d" xlink:to="loc_lbk_IndemnitiesAndOtherMattersRelatingToLegacyBusinessDisposalsMember_019f36d0-a90c-75c6-82ed-f9f28d82663a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions_019f36d1-2416-7276-93b7-438618ea9916" xlink:href="lbk-20260630.xsd#lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f36d0-a90c-7e09-92a8-06ef6fc11a24" xlink:to="loc_lbk_UnusedProvisionReversedAdditionalProvisionChargedOtherProvisions_019f36d1-2416-7276-93b7-438618ea9916" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherProvisions_019f36d0-a90c-787d-9cdf-7122f321f23e" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f36d0-a90c-7e09-92a8-06ef6fc11a24" xlink:to="loc_ifrs-full_OtherProvisions_019f36d0-a90c-787d-9cdf-7122f321f23e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestructuringProvision_019f36d0-a90c-77c4-a10b-4d68cde2b5f2" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestructuringProvision"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_019f36d0-a90c-7e09-92a8-06ef6fc11a24" xlink:to="loc_ifrs-full_RestructuringProvision_019f36d0-a90c-77c4-a10b-4d68cde2b5f2" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/RelatedpartytransactionsBalancesandTransactionsWithFellowLloydsBankingGroupUndertakingsDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#RelatedpartytransactionsBalancesandTransactionsWithFellowLloydsBankingGroupUndertakingsDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/RelatedpartytransactionsBalancesandTransactionsWithFellowLloydsBankingGroupUndertakingsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-72fb-9341-f7166f5a343b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-72fb-9341-f7166f5a343b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019f128b-a24a-7ac1-ac6f-19ddf7f922ef" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-72fb-9341-f7166f5a343b" xlink:to="loc_srt_StatementScenarioAxis_019f128b-a24a-7ac1-ac6f-19ddf7f922ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7ac1-ac6f-19ddf7f922ef_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019f128b-a24a-7ac1-ac6f-19ddf7f922ef" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7ac1-ac6f-19ddf7f922ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7a3f-bef8-8c3a8ec88eb5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019f128b-a24a-7ac1-ac6f-19ddf7f922ef" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7a3f-bef8-8c3a8ec88eb5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember_019f128b-a24a-790d-9954-ef25ec0202b6" xlink:href="lbk-20260630.xsd#lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7a3f-bef8-8c3a8ec88eb5" xlink:to="loc_lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember_019f128b-a24a-790d-9954-ef25ec0202b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_019f128b-a24a-78ae-b4c4-25c717a9b846" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_019f128b-a24a-78ae-b4c4-25c717a9b846" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties_019f128b-a24a-798a-a0be-b82d20d6f7f2" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_TradeAndOtherReceivablesDueFromRelatedParties_019f128b-a24a-798a-a0be-b82d20d6f7f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_019f128b-a24a-70c8-b9ff-79255a26d70b" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_019f128b-a24a-70c8-b9ff-79255a26d70b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_019f128b-a24a-7878-87b5-61b983b768c2" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_019f128b-a24a-7878-87b5-61b983b768c2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecurities_019f128b-a24a-71c9-aed0-160a2fa264e4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_DebtSecurities_019f128b-a24a-71c9-aed0-160a2fa264e4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilities_019f128b-a24a-7dad-93b0-e33a5f0acb87" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7c10-8e70-2dbecc17e34a" xlink:to="loc_ifrs-full_SubordinatedLiabilities_019f128b-a24a-7dad-93b0-e33a5f0acb87" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/RelatedpartytransactionsNarrativeDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#RelatedpartytransactionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/RelatedpartytransactionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7718-830f-07459b11a53f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-755c-aeb4-f546cd4a3787" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7718-830f-07459b11a53f" xlink:to="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-755c-aeb4-f546cd4a3787" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019f128b-a24a-7d9d-a223-bd87ba07cf6a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-755c-aeb4-f546cd4a3787" xlink:to="loc_srt_StatementScenarioAxis_019f128b-a24a-7d9d-a223-bd87ba07cf6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7d9d-a223-bd87ba07cf6a_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019f128b-a24a-7d9d-a223-bd87ba07cf6a" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-7d9d-a223-bd87ba07cf6a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-786b-8197-4c4f97bf31df" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019f128b-a24a-7d9d-a223-bd87ba07cf6a" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-786b-8197-4c4f97bf31df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember_019f128b-a24a-773d-8f1e-ecc4d3b077d3" xlink:href="lbk-20260630.xsd#lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019f128b-a24a-786b-8197-4c4f97bf31df" xlink:to="loc_lbk_BalancesAndTransactionsWithLloydsBankingGroupPlcAndFellowSubsidiariesOfTheBankMember_019f128b-a24a-773d-8f1e-ecc4d3b077d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019f128b-a24a-7022-841f-177334ae67c2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019f128b-a24a-755c-aeb4-f546cd4a3787" xlink:to="loc_dei_LegalEntityAxis_019f128b-a24a-7022-841f-177334ae67c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f128b-a24a-7022-841f-177334ae67c2_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019f128b-a24a-7022-841f-177334ae67c2" xlink:to="loc_dei_EntityDomain_019f128b-a24a-7022-841f-177334ae67c2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f128b-a24a-7a73-a89c-d20ae77a00a8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019f128b-a24a-7022-841f-177334ae67c2" xlink:to="loc_dei_EntityDomain_019f128b-a24a-7a73-a89c-d20ae77a00a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_LloydsBankingGroupPlcMember_019f128b-a24a-7b78-8242-1ce3f2e35cc1" xlink:href="lbk-20260630.xsd#lbk_LloydsBankingGroupPlcMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f128b-a24a-7a73-a89c-d20ae77a00a8" xlink:to="loc_lbk_LloydsBankingGroupPlcMember_019f128b-a24a-7b78-8242-1ce3f2e35cc1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_ScottishWidowsMember_019f128b-a24a-7873-979d-7d29453fa435" xlink:href="lbk-20260630.xsd#lbk_ScottishWidowsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f128b-a24a-7a73-a89c-d20ae77a00a8" xlink:to="loc_lbk_ScottishWidowsMember_019f128b-a24a-7873-979d-7d29453fa435" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets_019f128b-a24a-7964-8648-96dda78be1a8" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestIncomeOnOtherFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7718-830f-07459b11a53f" xlink:to="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets_019f128b-a24a-7964-8648-96dda78be1a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_019f128b-a24a-7301-9e12-d72fca5679fe" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7718-830f-07459b11a53f" xlink:to="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_019f128b-a24a-7301-9e12-d72fca5679fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionExpense_019f128b-a24a-78e2-8aae-5744f7ef2692" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019f128b-a24a-7718-830f-07459b11a53f" xlink:to="loc_ifrs-full_FeeAndCommissionExpense_019f128b-a24a-78e2-8aae-5744f7ef2692" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lloydsbank.com/role/ContingentliabilitiescommitmentsandguaranteesDetails" xlink:type="simple" xlink:href="lbk-20260630.xsd#ContingentliabilitiescommitmentsandguaranteesDetails"/>
  <link:definitionLink xlink:role="http://www.lloydsbank.com/role/ContingentliabilitiescommitmentsandguaranteesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable_019f128b-a24a-7657-8bce-51f5b10bc70a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable_019f128b-a24a-7657-8bce-51f5b10bc70a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresAxis_019f128b-a24a-7260-b517-23588f0d21d1" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable_019f128b-a24a-7657-8bce-51f5b10bc70a" xlink:to="loc_ifrs-full_RiskExposuresAxis_019f128b-a24a-7260-b517-23588f0d21d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresDomain_019f128b-a24a-7260-b517-23588f0d21d1_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RiskExposuresAxis_019f128b-a24a-7260-b517-23588f0d21d1" xlink:to="loc_ifrs-full_RiskExposuresDomain_019f128b-a24a-7260-b517-23588f0d21d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresDomain_019f128b-a24a-7b43-b62f-71c76ea2a5ee" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RiskExposuresAxis_019f128b-a24a-7260-b517-23588f0d21d1" xlink:to="loc_ifrs-full_RiskExposuresDomain_019f128b-a24a-7b43-b62f-71c76ea2a5ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_MaximumExposureMember_019f128b-a24a-70e5-b203-50369d89fcdf" xlink:href="lbk-20260630.xsd#lbk_MaximumExposureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RiskExposuresDomain_019f128b-a24a-7b43-b62f-71c76ea2a5ee" xlink:to="loc_lbk_MaximumExposureMember_019f128b-a24a-70e5-b203-50369d89fcdf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasAxis_019f128b-a24a-7e89-98c2-d5049647ed25" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable_019f128b-a24a-7657-8bce-51f5b10bc70a" xlink:to="loc_ifrs-full_GeographicalAreasAxis_019f128b-a24a-7e89-98c2-d5049647ed25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain_019f128b-a24a-7e89-98c2-d5049647ed25_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_GeographicalAreasAxis_019f128b-a24a-7e89-98c2-d5049647ed25" xlink:to="loc_ifrs-full_GeographicalAreasDomain_019f128b-a24a-7e89-98c2-d5049647ed25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain_019f128b-a24a-7b87-8147-6e8e647a303a" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_GeographicalAreasAxis_019f128b-a24a-7e89-98c2-d5049647ed25" xlink:to="loc_ifrs-full_GeographicalAreasDomain_019f128b-a24a-7b87-8147-6e8e647a303a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_NL_019f128b-a24a-7023-90e7-a0c38d1dc83f" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_NL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GeographicalAreasDomain_019f128b-a24a-7b87-8147-6e8e647a303a" xlink:to="loc_country_NL_019f128b-a24a-7023-90e7-a0c38d1dc83f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis_019f128b-a24a-7047-8c1f-7cc736c6ece5" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable_019f128b-a24a-7657-8bce-51f5b10bc70a" xlink:to="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis_019f128b-a24a-7047-8c1f-7cc736c6ece5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain_019f128b-a24a-7047-8c1f-7cc736c6ece5_default" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis_019f128b-a24a-7047-8c1f-7cc736c6ece5" xlink:to="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain_019f128b-a24a-7047-8c1f-7cc736c6ece5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain_019f128b-a24a-77df-8b10-d4b2924da007" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis_019f128b-a24a-7047-8c1f-7cc736c6ece5" xlink:to="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain_019f128b-a24a-77df-8b10-d4b2924da007" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalProceedingsContingentLiabilityMember_019f128b-a24a-7356-bc1c-632c5456f440" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LegalProceedingsContingentLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain_019f128b-a24a-77df-8b10-d4b2924da007" xlink:to="loc_ifrs-full_LegalProceedingsContingentLiabilityMember_019f128b-a24a-7356-bc1c-632c5456f440" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EstimatedFinancialEffectOfContingentLiabilities_019f128b-a24a-7a47-8831-ca9b1cd2c86f" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimatedFinancialEffectOfContingentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_ifrs-full_EstimatedFinancialEffectOfContingentLiabilities_019f128b-a24a-7a47-8831-ca9b1cd2c86f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossLoanCommitments_019f128b-a24a-7e16-9691-4978a9481dd4" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossLoanCommitments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_ifrs-full_GrossLoanCommitments_019f128b-a24a-7e16-9691-4978a9481dd4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IrrevocableCommitments_019f128b-a24a-7e60-84f5-1314a157aed7" xlink:href="lbk-20260630.xsd#lbk_IrrevocableCommitments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_lbk_IrrevocableCommitments_019f128b-a24a-7e60-84f5-1314a157aed7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CapitalCommitments_019f128b-a24a-7463-8a1a-d3a674b6aa13" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalCommitments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_ifrs-full_CapitalCommitments_019f128b-a24a-7463-8a1a-d3a674b6aa13" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_NumberOfClassActionsNamedAsDefendant_019f128b-a24a-7c59-8941-8f51e113626e" xlink:href="lbk-20260630.xsd#lbk_NumberOfClassActionsNamedAsDefendant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_lbk_NumberOfClassActionsNamedAsDefendant_019f128b-a24a-7c59-8941-8f51e113626e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lbk_IncreaseDecreaseInCurrentTaxLiability_019f128b-a24a-75fe-9fb6-27fc2cab068b" xlink:href="lbk-20260630.xsd#lbk_IncreaseDecreaseInCurrentTaxLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_lbk_IncreaseDecreaseInCurrentTaxLiability_019f128b-a24a-75fe-9fb6-27fc2cab068b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset_019f128b-a24a-703b-91da-cf07410baeaa" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019f128b-a24a-7d84-8f01-5d11b2fd8005" xlink:to="loc_ifrs-full_IncreaseDecreaseInDeferredTaxLiabilityAsset_019f128b-a24a-703b-91da-cf07410baeaa" xlink:type="arc" order="6"/>
  </link:definitionLink>
</link:linkbase>
