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        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001139032</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001069202</issuerCik>
            <issuerName>LENNOX INTERNATIONAL INC</issuerName>
            <secFileNumber>001-15149</secFileNumber>
            <issuerAddress>
                <ns2:street1>2140 LAKE PARK BLVD.</ns2:street1>
                <ns2:city>RICHARDSON</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>75080</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>9724975000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>JOHN W NORRIS III</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>3190</noOfUnitsSold>
            <aggregateMarketValue>1920699.00</aggregateMarketValue>
            <noOfUnitsOutstanding>35484828</noOfUnitsOutstanding>
            <approxSaleDate>07/03/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>07/23/2009</acquiredDate>
            <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>John W. Norris, Jr.</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>Y</isGiftTransaction>
            <donarAcquiredDate>07/23/2009</donarAcquiredDate>
            <amountOfSecuritiesAcquired>3190</amountOfSecuritiesAcquired>
            <natureOfPayment>NA</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for JOHN W NORRIS III</name>
                <address>
                    <ns2:street1>2140 LAKE PARK BLVD.</ns2:street1>
                    <ns2:city>RICHARDSON</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>75080</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>07/01/2025</saleDate>
            <amountOfSecuritiesSold>3190</amountOfSecuritiesSold>
            <grossProceeds>1914000.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>07/03/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>02/20/2025</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ John W Norris III</signature>
        </noticeSignature>
    </formData>
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144
0001139032
XXXXXXXX
LIVE
0001069202
LENNOX INTERNATIONAL INC
001-15149
2140 LAKE PARK BLVD.
RICHARDSON
TX
75080
9724975000
JOHN W NORRIS III
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
3190
1920699.00
35484828
07/03/2025
NYSE
Common
07/23/2009
Gift
John W. Norris, Jr.
Y
07/23/2009
3190
NA
N
10b5-1 Sales for JOHN W NORRIS III
2140 LAKE PARK BLVD.
RICHARDSON
TX
75080
Common
07/01/2025
3190
1914000.00
07/03/2025
02/20/2025
/s/ John W Norris III