<?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>0001786101</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001387467</issuerCik>
            <issuerName>ALPHA AND OMEGA SEMICONDUCTOR LIMITED</issuerName>
            <secFileNumber>001-34717</secFileNumber>
            <issuerAddress>
                <ns2:street1>Clarendon House, 2 Church Street</ns2:street1>
                <ns2:city>Hamilton</ns2:city>
                <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                <ns2:zipCode>HM 11</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(408) 830-9742</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CLAUDIA CHEN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <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>5623</noOfUnitsSold>
            <aggregateMarketValue>288279.96</aggregateMarketValue>
            <noOfUnitsOutstanding>29030838</noOfUnitsOutstanding>
            <approxSaleDate>12/05/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/11/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1002</amountOfSecuritiesAcquired>
            <paymentDate>02/11/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/12/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1614</amountOfSecuritiesAcquired>
            <paymentDate>02/12/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/11/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1003</amountOfSecuritiesAcquired>
            <paymentDate>11/11/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/11/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1002</amountOfSecuritiesAcquired>
            <paymentDate>05/11/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>08/11/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1002</amountOfSecuritiesAcquired>
            <paymentDate>08/11/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/05/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/05/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Claudia Chen</signature>
        </noticeSignature>
    </formData>
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144
0001786101
XXXXXXXX
LIVE
0001387467
ALPHA AND OMEGA SEMICONDUCTOR LIMITED
001-34717
Clarendon House, 2 Church Street
Hamilton
D0
HM 11
(408) 830-9742
CLAUDIA CHEN
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
5623
288279.96
29030838
12/05/2024
NASDAQ
Common
02/11/2022
Restricted Stock
ISSUER
N
1002
02/11/2022
Not Applicable
Common
02/12/2021
Restricted Stock
ISSUER
N
1614
02/12/2021
Not Applicable
Common
11/11/2022
Restricted Stock
ISSUER
N
1003
11/11/2022
Not Applicable
Common
05/11/2022
Restricted Stock
ISSUER
N
1002
05/11/2022
Not Applicable
Common
08/11/2022
Restricted Stock
ISSUER
N
1002
08/11/2022
Not Applicable
Y
12/05/2024
09/05/2024
/s/ Claudia Chen