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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 C2Apm85NMeJFBc1Gxd59QDmtHnsPgewGg8Z/kMP2zfH+ojWGDEDHnO3takCET9vo
 6w0zH/8CXe3rTU7QI5rO/Q==

<SEC-DOCUMENT>0000318300-03-000123.txt : 20030728
<SEC-HEADER>0000318300-03-000123.hdr.sgml : 20030728
<ACCEPTANCE-DATETIME>20030728161303
ACCESSION NUMBER:		0000318300-03-000123
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030722
FILED AS OF DATE:		20030728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PEOPLES BANCORP INC
		CENTRAL INDEX KEY:			0000318300
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				310987416
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		138 PUTNAM ST
		STREET 2:		P O BOX 738
		CITY:			MARIETTA
		STATE:			OH
		ZIP:			45750-0738
		BUSINESS PHONE:		7403733155

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BAKER DAVID B
		CENTRAL INDEX KEY:			0001077147

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-16772
		FILM NUMBER:		03806257

	BUSINESS ADDRESS:	
		STREET 1:		138 PUTNAM ST
		STREET 2:		P.O. BOX 738
		CITY:			NARUETTA
		STATE:			OH
		ZIP:			45750

	MAIL ADDRESS:	
		STREET 1:		138 PUTNAM ST
		STREET 2:		P.O. BOX 738
		CITY:			MARIETTA
		STATE:			OH
		ZIP:			45750
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-07-22</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000318300</issuerCik>
        <issuerName>PEOPLES BANCORP INC</issuerName>
        <issuerTradingSymbol>PEBO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001077147</rptOwnerCik>
            <rptOwnerName>BAKER DAVID B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>138 PUTNAM ST</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 738</rptOwnerStreet2>
            <rptOwnerCity>MARIETTA</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45750</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2003-07-22</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2003-07-28</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1784</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.06</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1745</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k) plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person also directly owns 13,424 shares of common stock.  In addition, directly owns ISOs to purchase shares of PEBO as follows: 18,601 @$8.798; 3,630 @$14.256; 7,321 @$15.665; 778 @$19.639; 7,577 @$19.925; 3,714 @$23,440; 2,357 @$24.77; 1,335 @$23.44 and 582 @ $24.77.</footnote>
    </footnotes>


    <ownerSignature>
        <signatureName>David B. Baker, by Gary L. Kriechbaum POA</signatureName>
        <signatureDate>2003-07-28</signatureDate>
    </ownerSignature>

</ownershipDocument>

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