<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  11.4.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 7/29/2026 5:07:17 PM-->
<!--Modified on: 7/29/2026 5:07:17 PM-->
<xsd:schema targetNamespace="http://www.lincolnelectric.com/20260630" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:leco="http://www.lincolnelectric.com/20260630" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:us-roles="http://fasb.org/us-roles/2025" xmlns:currency="http://xbrl.sec.gov/currency/2025" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:stpr="http://xbrl.sec.gov/stpr/2025" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:attributeFormDefault="unqualified" xmlns:srt="http://fasb.org/srt/2025" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dtr="http://www.xbrl.org/2009/dtr" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:ecd="http://xbrl.sec.gov/ecd/2025" xmlns:ecd-sub="http://xbrl.sec.gov/ecd-sub/2025">
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementConsolidatedStatementsOfIncome" id="StatementConsolidatedStatementsOfIncome">
        <link:definition>995200100 - Statement - CONSOLIDATED STATEMENTS OF INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementConsolidatedStatementsOfComprehensiveIncome" id="StatementConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>995200200 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementCondensedConsolidatedBalanceSheets" id="StatementCondensedConsolidatedBalanceSheets">
        <link:definition>995200300 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementConsolidatedStatementsOfCashFlows" id="StatementConsolidatedStatementsOfCashFlows">
        <link:definition>995200500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureEarningsPerShareDetails" id="DisclosureEarningsPerShareDetails">
        <link:definition>99940301 - Disclosure - EARNINGS PER SHARE (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureInventoriesDetails" id="DisclosureInventoriesDetails">
        <link:definition>99940801 - Disclosure - INVENTORIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeasesScheduleOfLeasesInBalanceSheetsDetails" id="DisclosureLeasesScheduleOfLeasesInBalanceSheetsDetails">
        <link:definition>99940901 - Disclosure - LEASES - Schedule of Leases in Balance Sheets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesOperatingLeasesDetails" id="DisclosureLeasesMaturitiesOfLeaseLiabilitiesOperatingLeasesDetails">
        <link:definition>99940902 - Disclosure - LEASES - Maturities of Lease Liabilities, Operating Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebtScheduleOfDebtDetails" id="DisclosureDebtScheduleOfDebtDetails">
        <link:definition>99941001 - Disclosure - DEBT - Schedule of Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesOperatingLeasesDetailsCalc2" id="DisclosureLeasesMaturitiesOfLeaseLiabilitiesOperatingLeasesDetailsCalc2">
        <link:definition>41703 - Disclosure - LEASES - Maturities of Lease Liabilities, Operating Leases (Details) Calc2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementConsolidatedStatementsOfEquity" id="StatementConsolidatedStatementsOfEquity">
        <link:definition>995200400 - Statement - CONSOLIDATED STATEMENTS OF EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureInventoriesTables" id="DisclosureInventoriesTables">
        <link:definition>99930803 - Disclosure - INVENTORIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebtTables" id="DisclosureDebtTables">
        <link:definition>99931003 - Disclosure - DEBT (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRevenueRecognitionDisaggregationOfRevenueDetails" id="DisclosureRevenueRecognitionDisaggregationOfRevenueDetails">
        <link:definition>99940201 - Disclosure - REVENUE RECOGNITION - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRevenueRecognitionNarrativeDetails" id="DisclosureRevenueRecognitionNarrativeDetails">
        <link:definition>99940202 - Disclosure - REVENUE RECOGNITION - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureAcquisitionsNarrativeDetails" id="DisclosureAcquisitionsNarrativeDetails">
        <link:definition>99940401 - Disclosure - ACQUISITIONS - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSegmentInformationFinancialInformationOfReportableSegmentsDetails" id="DisclosureSegmentInformationFinancialInformationOfReportableSegmentsDetails">
        <link:definition>99940501 - Disclosure - SEGMENT INFORMATION - Financial Information of Reportable Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSegmentInformationReconciliationOfSegmentInformationEbitDetails" id="DisclosureSegmentInformationReconciliationOfSegmentInformationEbitDetails">
        <link:definition>99940502 - Disclosure - SEGMENT INFORMATION - Reconciliation of segment information - EBIT (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSegmentInformationReconciliationOfSegmentAssetsToConsolidatedAssetsDetails" id="DisclosureSegmentInformationReconciliationOfSegmentAssetsToConsolidatedAssetsDetails">
        <link:definition>99940503 - Disclosure - SEGMENT INFORMATION - Reconciliation of Segment Assets to Consolidated Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRationalizationAndAssetImpairmentsRationalizationAndAssetImpairmentNetChargesDetails" id="DisclosureRationalizationAndAssetImpairmentsRationalizationAndAssetImpairmentNetChargesDetails">
        <link:definition>99940601 - Disclosure - RATIONALIZATION AND ASSET IMPAIRMENTS - Rationalization and asset impairment net charges (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRationalizationAndAssetImpairmentsSummaryOfActivityRelatedToRationalizationLiabilitiesBySegmentDetails" id="DisclosureRationalizationAndAssetImpairmentsSummaryOfActivityRelatedToRationalizationLiabilitiesBySegmentDetails">
        <link:definition>99940602 - Disclosure - RATIONALIZATION AND ASSET IMPAIRMENTS - Summary of Activity Related to Rationalization Liabilities by Segment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossaociDetails" id="DisclosureAccumulatedOtherComprehensiveIncomeLossaociDetails">
        <link:definition>99940701 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ("AOCI") (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebtSeniorUnsecuredNotesDetails" id="DisclosureDebtSeniorUnsecuredNotesDetails">
        <link:definition>99941002 - Disclosure - DEBT - Senior Unsecured Notes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebtRevolvingCreditAgreementDetails" id="DisclosureDebtRevolvingCreditAgreementDetails">
        <link:definition>99941003 - Disclosure - DEBT - Revolving Credit Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebtFairValueAndCarryingValueDetails" id="DisclosureDebtFairValueAndCarryingValueDetails">
        <link:definition>99941004 - Disclosure - DEBT - Fair Value and Carrying Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivativesFairValueOfDerivativeInstrumentsDetails" id="DisclosureDerivativesFairValueOfDerivativeInstrumentsDetails">
        <link:definition>99941201 - Disclosure - DERIVATIVES - Fair Value of Derivative Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivativesDerivativesIncomeStatementImpactDetails" id="DisclosureDerivativesDerivativesIncomeStatementImpactDetails">
        <link:definition>99941202 - Disclosure - DERIVATIVES - Derivatives Income Statement Impact (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivativesAociImpactDetails" id="DisclosureDerivativesAociImpactDetails">
        <link:definition>99941203 - Disclosure - DERIVATIVES - AOCI Impact (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivativesNarrativeDetails" id="DisclosureDerivativesNarrativeDetails">
        <link:definition>99941204 - Disclosure - DERIVATIVES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureFairValueSummaryOfFairValueAssetsAndLiabilitiesDetails" id="DisclosureFairValueSummaryOfFairValueAssetsAndLiabilitiesDetails">
        <link:definition>99941301 - Disclosure - FAIR VALUE - Summary of Fair Value Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSupplierFinancingProgramDetails" id="DisclosureSupplierFinancingProgramDetails">
        <link:definition>99941401 - Disclosure - SUPPLIER FINANCING PROGRAM (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>995200090 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical" id="StatementCondensedConsolidatedBalanceSheetsParenthetical">
        <link:definition>995200305 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/StatementConsolidatedStatementsOfEquityParenthetical" id="StatementConsolidatedStatementsOfEquityParenthetical">
        <link:definition>995200405 - Statement - CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSignificantAccountingPolicies" id="DisclosureSignificantAccountingPolicies">
        <link:definition>995210101 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRevenueRecognition" id="DisclosureRevenueRecognition">
        <link:definition>995210201 - Disclosure - REVENUE RECOGNITION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureEarningsPerShare" id="DisclosureEarningsPerShare">
        <link:definition>995210301 - Disclosure - EARNINGS PER SHARE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureAcquisitions" id="DisclosureAcquisitions">
        <link:definition>995210401 - Disclosure - ACQUISITIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSegmentInformation" id="DisclosureSegmentInformation">
        <link:definition>995210501 - Disclosure - SEGMENT INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRationalizationAndAssetImpairments" id="DisclosureRationalizationAndAssetImpairments">
        <link:definition>995210601 - Disclosure - RATIONALIZATION AND ASSET IMPAIRMENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossaoci" id="DisclosureAccumulatedOtherComprehensiveIncomeLossaoci">
        <link:definition>995210701 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ("AOCI")</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureInventories" id="DisclosureInventories">
        <link:definition>995210801 - Disclosure - INVENTORIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeases" id="DisclosureLeases">
        <link:definition>995210901 - Disclosure - LEASES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDebt" id="DisclosureDebt">
        <link:definition>995211001 - Disclosure - DEBT</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>995211101 - Disclosure - INCOME TAXES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivatives" id="DisclosureDerivatives">
        <link:definition>995211201 - Disclosure - DERIVATIVES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureFairValue" id="DisclosureFairValue">
        <link:definition>995211301 - Disclosure - FAIR VALUE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSupplierFinancingProgram" id="DisclosureSupplierFinancingProgram">
        <link:definition>995211401 - Disclosure - SUPPLIER FINANCING PROGRAM</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSignificantAccountingPoliciesPolicies" id="DisclosureSignificantAccountingPoliciesPolicies">
        <link:definition>99920102 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSignificantAccountingPoliciesTables" id="DisclosureSignificantAccountingPoliciesTables">
        <link:definition>99930103 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRevenueRecognitionTables" id="DisclosureRevenueRecognitionTables">
        <link:definition>99930203 - Disclosure - REVENUE RECOGNITION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureEarningsPerShareTables" id="DisclosureEarningsPerShareTables">
        <link:definition>99930303 - Disclosure - EARNINGS PER SHARE (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureSegmentInformationTables" id="DisclosureSegmentInformationTables">
        <link:definition>99930503 - Disclosure - SEGMENT INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureRationalizationAndAssetImpairmentsTables" id="DisclosureRationalizationAndAssetImpairmentsTables">
        <link:definition>99930603 - Disclosure - RATIONALIZATION AND ASSET IMPAIRMENTS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossaociTables" id="DisclosureAccumulatedOtherComprehensiveIncomeLossaociTables">
        <link:definition>99930703 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ("AOCI") (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeasesTables" id="DisclosureLeasesTables">
        <link:definition>99930903 - Disclosure - LEASES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureDerivativesTables" id="DisclosureDerivativesTables">
        <link:definition>99931203 - Disclosure - DERIVATIVES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureFairValueTables" id="DisclosureFairValueTables">
        <link:definition>99931303 - Disclosure - FAIR VALUE (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureLeasesOtherInformationRelatedToLeasesDetails" id="DisclosureLeasesOtherInformationRelatedToLeasesDetails">
        <link:definition>99940903 - Disclosure - LEASES - Other information related to leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureIncomeTaxesDetails" id="DisclosureIncomeTaxesDetails">
        <link:definition>99941101 - Disclosure - INCOME TAXES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="leco-20260630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="leco-20260630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="leco-20260630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="leco-20260630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://www.lincolnelectric.com/role/DisclosureStandardAndCustomAxisDomainDefaults" id="DisclosureStandardAndCustomAxisDomainDefaults">
        <link:definition>99900 - Disclosure - Standard And Custom Axis Domain Defaults</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="https://xbrl.org/2023/calculation-1.1" schemaLocation="https://www.xbrl.org/2023/calculation-1.1.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2025" schemaLocation="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd-sub/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd" />
  <xsd:element name="AmericasWeldingMember" id="leco_AmericasWeldingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassAxis" id="leco_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassDomain" id="leco_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HarrisProductsGroupMember" id="leco_HarrisProductsGroupMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeLossBeforeInterestAndIncomeTaxesAdjusted" id="leco_IncomeLossBeforeInterestAndIncomeTaxesAdjusted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InternationalWeldingMember" id="leco_InternationalWeldingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityAdditionalCapacityIncreaseOption" id="leco_LineOfCreditFacilityAdditionalCapacityIncreaseOption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PercentageNetSalesOverTime" id="leco_PercentageNetSalesOverTime" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="RationalizationPlanByNameAxis" id="leco_RationalizationPlanByNameAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RationalizationPlanByNameDomain" id="leco_RationalizationPlanByNameDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfLeasesInBalanceSheetTableTextBlock" id="leco_ScheduleOfLeasesInBalanceSheetTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotes2015Member" id="leco_SeniorNotes2015Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotes2016Member" id="leco_SeniorNotes2016Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotesSeriesAMember" id="leco_SeniorNotesSeriesAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotesSeriesBMember" id="leco_SeniorNotesSeriesBMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotesSeriesCMember" id="leco_SeniorNotesSeriesCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeniorNotesSeriesDMember" id="leco_SeniorNotesSeriesDMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SpecialItemsChargeGain" id="leco_SpecialItemsChargeGain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="WeldingConsumablesMember" id="leco_WeldingConsumablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeldingEquipmentMember" id="leco_WeldingEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UsGaap_OtherLinesOfCreditMember" id="leco_UsGaap_OtherLinesOfCreditMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdvanceCustomerPaymentsMember" id="leco_AdvanceCustomerPaymentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BillingsInExcessOfRevenueRecognizedMember" id="leco_BillingsInExcessOfRevenueRecognizedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PendingAccountingPronouncementsTableTextBlock" id="leco_PendingAccountingPronouncementsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" id="leco_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PensionSurplusMember" id="leco_PensionSurplusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NetLeverageRatio" id="leco_NetLeverageRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InterestCoverageRatio" id="leco_InterestCoverageRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentTermIncludingDerivatives" id="leco_DebtInstrumentTermIncludingDerivatives" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TotalSeniorUnsecuredNotesMember" id="leco_TotalSeniorUnsecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SegmentReportingOtherSegmentItemAmount" id="leco_SegmentReportingOtherSegmentItemAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SeniorNotes2024Member" id="leco_SeniorNotes2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AlloySteelAustraliaIntPtyLtdMember" id="leco_AlloySteelAustraliaIntPtyLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EliminationsAndReconcilingItemsMember" id="leco_EliminationsAndReconcilingItemsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WeldingAutomationMember" id="leco_WeldingAutomationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
