<?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>0001870350</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001562088</issuerCik>
            <issuerName>Duolingo, Inc.</issuerName>
            <secFileNumber>001-40653</secFileNumber>
            <issuerAddress>
                <ns2:street1>5900 Penn Avenue </ns2:street1>
                <ns2:city>Pittsburgh</ns2:city>
                <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                <ns2:zipCode>15206</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>4125676602</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>NATALIE GLANCE</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>5976</noOfUnitsSold>
            <aggregateMarketValue>3170387.52</aggregateMarketValue>
            <noOfUnitsOutstanding>39260633</noOfUnitsOutstanding>
            <approxSaleDate>05/16/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/12/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5976</amountOfSecuritiesAcquired>
            <paymentDate>05/12/2021</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>NATALIE GLANCE</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/15/2025</saleDate>
            <amountOfSecuritiesSold>3039</amountOfSecuritiesSold>
            <grossProceeds>1615852.41</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for NATALIE GLANCE</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/01/2025</saleDate>
            <amountOfSecuritiesSold>3482</amountOfSecuritiesSold>
            <grossProceeds>1112805.07</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for NATALIE GLANCE</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/05/2025</saleDate>
            <amountOfSecuritiesSold>9020</amountOfSecuritiesSold>
            <grossProceeds>2621156.29</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>NATALIE GLANCE</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>02/18/2025</saleDate>
            <amountOfSecuritiesSold>2667</amountOfSecuritiesSold>
            <grossProceeds>1160891.76</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were acquired upon the vesting of restricted stock units during the period of 05/12/2021 through 05/15/2024.
</remarks>
        <noticeSignature>
            <noticeDate>05/16/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/14/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Natalie Glance</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6261}]
144
0001870350
XXXXXXXX
LIVE
0001562088
Duolingo, Inc.
001-40653
5900 Penn Avenue
Pittsburgh
PA
15206
4125676602
NATALIE GLANCE
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
5976
3170387.52
39260633
05/16/2025
NASDAQ
Common
05/12/2021
Restricted Stock Units
Issuer
N
5976
05/12/2021
N/A
N
NATALIE GLANCE
5900 Penn Avenue
Pittsburgh
PA
15206
Common
05/15/2025
3039
1615852.41
10b5-1 Sales for NATALIE GLANCE
5900 Penn Avenue
Pittsburgh
PA
15206
Common
04/01/2025
3482
1112805.07
10b5-1 Sales for NATALIE GLANCE
5900 Penn Avenue
Pittsburgh
PA
15206
Common
03/05/2025
9020
2621156.29
NATALIE GLANCE
5900 Penn Avenue
Pittsburgh
PA
15206
Common
02/18/2025
2667
1160891.76
The securities to be sold were acquired upon the vesting of restricted stock units during the period of 05/12/2021 through 05/15/2024.
05/16/2025
11/14/2024
/s/ Natalie Glance