-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GfQsVw31Iolk/QDSDwyiSKE8fPL0PoQq+1vr/cYpsYIxGo+ulX0bVU675QDY1mpG
 JtJhq7gI8MG03F6PgJXEcg==

<SEC-DOCUMENT>0000726514-03-000041.txt : 20031121
<SEC-HEADER>0000726514-03-000041.hdr.sgml : 20031121
<ACCEPTANCE-DATETIME>20031121181826
ACCESSION NUMBER:		0000726514-03-000041
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031030
FILED AS OF DATE:		20031121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MUSTOE KERRY L
		CENTRAL INDEX KEY:			0001270988

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12853
		FILM NUMBER:		031019194

	BUSINESS ADDRESS:	
		STREET 1:		13900 NW SCIENCE PARK DR
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97229
		BUSINESS PHONE:		5036414141

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ELECTRO SCIENTIFIC INDUSTRIES INC
		CENTRAL INDEX KEY:			0000726514
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				930370304
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		13900 NW SCIENCE PARK DR
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97229
		BUSINESS PHONE:		5036414141

	MAIL ADDRESS:	
		STREET 1:		13900 NW SCIENCE PARK DRIVE
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97229-5497
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2003-10-30</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000726514</issuerCik>
        <issuerName>ELECTRO SCIENTIFIC INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>ESIO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001270988</rptOwnerCik>
            <rptOwnerName>MUSTOE KERRY L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>13900 NW SCIENCE PARK DR.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PORTLAND</rptOwnerCity>
            <rptOwnerState>OR</rptOwnerState>
            <rptOwnerZipCode>97229</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Controller &amp; CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>

        <derivativeHolding>
            <securityTitle>
                <value>Incentive Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>20.16</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-09-02</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-09-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>15000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>

    </derivativeTable>

    <footnotes>
        <footnote id="F1">Options become exercisable for 25% of the shares on the first four anniversaries of the grant date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Kerry L Mustoe</signatureName>
        <signatureDate>2003-11-21</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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