<SEC-DOCUMENT>0001209191-22-021805.txt : 20220331
<SEC-HEADER>0001209191-22-021805.hdr.sgml : 20220331
<ACCEPTANCE-DATETIME>20220331172714
ACCESSION NUMBER:		0001209191-22-021805
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220326
FILED AS OF DATE:		20220331
DATE AS OF CHANGE:		20220331

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CAGGIA ANDREW M
		CENTRAL INDEX KEY:			0001107464

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04298
		FILM NUMBER:		22794527

	MAIL ADDRESS:	
		STREET 1:		12367 CROSTHWAITE CIRCLE
		CITY:			POWAY
		STATE:			CA
		ZIP:			92064

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COHU INC
		CENTRAL INDEX KEY:			0000021535
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				951934119
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1225

	BUSINESS ADDRESS:	
		STREET 1:		12367 CROSTHWAITE CIRCLE
		CITY:			POWAY
		STATE:			CA
		ZIP:			92064-6817
		BUSINESS PHONE:		858-848-8100

	MAIL ADDRESS:	
		STREET 1:		12367 CROSTHWAITE CIRCLE
		CITY:			POWAY
		STATE:			CA
		ZIP:			92064-6817

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COHU ELECTRONICS INC
		DATE OF NAME CHANGE:	19720809
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-03-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000021535</issuerCik>
        <issuerName>COHU INC</issuerName>
        <issuerTradingSymbol>COHU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001107464</rptOwnerCik>
            <rptOwnerName>CAGGIA ANDREW M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12367 CROSTHWAITE CIR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>POWAY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92064-6817</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-26</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>644</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40520</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Due to an administrative error, this is a late filing for this transaction.</footnote>
        <footnote id="F2">Grant of Phantom Stock in the form of Deferred Stock Units (DSUs) for payment of Director Fees.  Each DSU is equal to one share of Cohu, Inc. Common Stock and will be settled through the issuance of common stock (i) upon reporting person's termination of service as a director or (ii) at certain specified future dates.</footnote>
        <footnote id="F3">Number of shares includes 4,001 Restricted Stock Units (RSUs) and 26,519 Deferred Stock Units (DSUs). Each RSU represents a contingent right to receive one share of Cohu, Inc. Common Stock upon vesting (assuming continued service to the Board). Each DSU is equal to one share of Cohu, Inc. Common Stock and will be settled through the issuance of common stock (i) upon the reporting person's termination of service as a director or (ii) at certain specified dates.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Jeffrey D. Jones, by Power of Attorney</signatureName>
        <signatureDate>2022-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
