<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001247575</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001070524</issuerCik>
            <issuerName>Greene County Bancorp, Inc.</issuerName>
            <secFileNumber>000-25165</secFileNumber>
            <issuerAddress>
                <ns2:street1>302 Main Street</ns2:street1>
                <ns2:city>Catskill</ns2:city>
                <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                <ns2:zipCode>12414</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(518) 943-2600</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MICHELLE PLUMMER</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</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>3154</noOfUnitsSold>
            <aggregateMarketValue>95639.69</aggregateMarketValue>
            <noOfUnitsOutstanding>17026828</noOfUnitsOutstanding>
            <approxSaleDate>06/13/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common stock</securitiesClassTitle>
            <acquiredDate>03/28/2001</acquiredDate>
            <natureOfAcquisitionTransaction>Employee stock unit award(s)</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>540</amountOfSecuritiesAcquired>
            <paymentDate>03/28/2001</paymentDate>
            <natureOfPayment>Employee stock unit award(s)</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common stock</securitiesClassTitle>
            <acquiredDate>03/28/2002</acquiredDate>
            <natureOfAcquisitionTransaction>Employee stock unit award(s)</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>540</amountOfSecuritiesAcquired>
            <paymentDate>03/28/2002</paymentDate>
            <natureOfPayment>Employee stock unit award(s)</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common stock</securitiesClassTitle>
            <acquiredDate>03/16/2016</acquiredDate>
            <natureOfAcquisitionTransaction>Stock Split</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>74</amountOfSecuritiesAcquired>
            <paymentDate>03/16/2016</paymentDate>
            <natureOfPayment>Stock Split</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common stock</securitiesClassTitle>
            <acquiredDate>12/05/2007</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of options under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2000</amountOfSecuritiesAcquired>
            <paymentDate>12/05/2007</paymentDate>
            <natureOfPayment>Employee stock unit award(s)</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>06/13/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Michelle M Plummer</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001247575
XXXXXXXX
LIVE
0001070524
Greene County Bancorp, Inc.
000-25165
302 Main Street
Catskill
NY
12414
(518) 943-2600
MICHELLE PLUMMER
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
3154
95639.69
17026828
06/13/2024
NASDAQ
Common stock
03/28/2001
Employee stock unit award(s)
Issuer
N
540
03/28/2001
Employee stock unit award(s)
Common stock
03/28/2002
Employee stock unit award(s)
Issuer
N
540
03/28/2002
Employee stock unit award(s)
Common stock
03/16/2016
Stock Split
Issuer
N
74
03/16/2016
Stock Split
Common stock
12/05/2007
Exercise of options under a registered plan
Issuer
N
2000
12/05/2007
Employee stock unit award(s)
Y
06/13/2024
/s/ Michelle M Plummer