<?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>0001350416</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001832168</issuerCik>
            <issuerName>LONGBOARD PHARMACEUTICALS, INC</issuerName>
            <secFileNumber>001-40192</secFileNumber>
            <issuerAddress>
                <ns2:street1>4275 Executive Square, Ste 950</ns2:street1>
                <ns2:city> La Jolla</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>92037</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>858-789-9283</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>RANDALL KAYE</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>33333</noOfUnitsSold>
            <aggregateMarketValue>1143988.56</aggregateMarketValue>
            <noOfUnitsOutstanding>38899521</noOfUnitsOutstanding>
            <approxSaleDate>09/16/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>09/16/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>33333</amountOfSecuritiesAcquired>
            <paymentDate>09/16/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for RANDALL E KAYE</name>
                <address>
                    <ns2:street1>4275 Executive Square, Ste 950</ns2:street1>
                    <ns2:city> La Jolla</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>92037</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/12/2024</saleDate>
            <amountOfSecuritiesSold>16667</amountOfSecuritiesSold>
            <grossProceeds>578804.91</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.&#13;
</remarks>
        <noticeSignature>
            <noticeDate>09/16/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/12/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Randall Kaye</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4276}]
144
0001350416
XXXXXXXX
LIVE
0001832168
LONGBOARD PHARMACEUTICALS, INC
001-40192
4275 Executive Square, Ste 950
La Jolla
CA
92037
858-789-9283
RANDALL KAYE
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
33333
1143988.56
38899521
09/16/2024
NASDAQ
Common
09/16/2024
Exercise of Stock Options
Issuer
N
33333
09/16/2024
Cash
N
10b5-1 Sales for RANDALL E KAYE
4275 Executive Square, Ste 950
La Jolla
CA
92037
Common
08/12/2024
16667
578804.91
The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
09/16/2024
05/12/2024
/s/ Randall Kaye