<?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>0001931799</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001845022</issuerCik>
            <issuerName>COUCHBASE INC</issuerName>
            <secFileNumber>001-40601</secFileNumber>
            <issuerAddress>
                <ns2:street1>3250 Olcott Street</ns2:street1>
                <ns2:city>Santa Clara</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>95054</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>6504177500</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>HUW OWEN</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>7836</noOfUnitsSold>
            <aggregateMarketValue>113386.92</aggregateMarketValue>
            <noOfUnitsOutstanding>51324327</noOfUnitsOutstanding>
            <approxSaleDate>09/26/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>09/15/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>7836</amountOfSecuritiesAcquired>
            <paymentDate>09/15/2024</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for HUW MALGWYN OWEN</name>
                <address>
                    <ns2:street1>3250 Olcott Street</ns2:street1>
                    <ns2:city>Santa Clara</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>95054</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>07/25/2024</saleDate>
            <amountOfSecuritiesSold>3895</amountOfSecuritiesSold>
            <grossProceeds>77943.23</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>09/26/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>10/02/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Huw Owen</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001931799
XXXXXXXX
LIVE
0001845022
COUCHBASE INC
001-40601
3250 Olcott Street
Santa Clara
CA
95054
6504177500
HUW OWEN
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
7836
113386.92
51324327
09/26/2024
NASDAQ
Common
09/15/2024
Restricted Stock Units
Issuer
N
7836
09/15/2024
N/A
N
10b5-1 Sales Plan for HUW MALGWYN OWEN
3250 Olcott Street
Santa Clara
CA
95054
Common
07/25/2024
3895
77943.23
09/26/2024
10/02/2023
/s/ Huw Owen