<?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>0001647805</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001635088</issuerCik>
            <issuerName>ROIVANT SCIENCES LTD.</issuerName>
            <secFileNumber>001-40782</secFileNumber>
            <issuerAddress>
                <ns2:street1>7th Floor 50 Broadway</ns2:street1>
                <ns2:city>London</ns2:city>
                <ns2:stateOrCountry>X0</ns2:stateOrCountry>
                <ns2:zipCode>SW1H 0DB</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>44 207 400 3347</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>FRANK M TORTI</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <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>64891</noOfUnitsSold>
            <aggregateMarketValue>1458373.31</aggregateMarketValue>
            <noOfUnitsOutstanding>695491615</noOfUnitsOutstanding>
            <approxSaleDate>12/24/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>12/23/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>64891</amountOfSecuritiesAcquired>
            <paymentDate>12/23/2025</paymentDate>
            <natureOfPayment>Stock Swap</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <remarks>Sales that were executed on December 24, 2025 are being reported on this Form 144 filed on December 29, 2025 given December 24, 2025 and December 26, 2025 were treated as federal holidays for EDGAR filing purposes</remarks>
        <noticeSignature>
            <noticeDate>12/29/2025</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Frank Torti</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
