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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,
 CC18Tp5qKi7Vc34xdjmGCGK6ozJQIdId1QQTyqeZMqnQtke7qRojBgvmFnB+7tJ4
 GTQrUj/9qcWqdvLeYdpAcw==

<SEC-DOCUMENT>0000940394-03-000564.txt : 20030725
<SEC-HEADER>0000940394-03-000564.hdr.sgml : 20030725
<ACCEPTANCE-DATETIME>20030725141632
ACCESSION NUMBER:		0000940394-03-000564
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030725
FILED AS OF DATE:		20030725

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PARK WILLIAM H
		CENTRAL INDEX KEY:			0001246104

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-21226
		FILM NUMBER:		03803102

	MAIL ADDRESS:	
		STREET 1:		C/O EATON VANCE
		STREET 2:		THE EATON VANCE BLDG., 255 STATE ST.
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EATON VANCE INSURED OHIO  MUNICIPAL BOND FUND
		CENTRAL INDEX KEY:			0001196876

	BUSINESS ADDRESS:	
		STREET 1:		EATON VANCE BLDG
		STREET 2:		255 STATE STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109
		BUSINESS PHONE:		6174828260

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EATON VANCE INSURED OHIO  MUNICIPAL BOND FUND I
		DATE OF NAME CHANGE:	20021007
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>par2.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>3</documentType>
	<periodOfReport>2003-07-25</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001196876</issuerCik>
        <issuerName>EATON VANCE INSURED OHIO  MUNICIPAL BOND FUND</issuerName>
        <issuerTradingSymbol>EIO</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
		<reportingOwnerId>
            <rptOwnerCik>0001246104</rptOwnerCik>
            <rptOwnerName>PARK WILLIAM H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>1</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>0</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<nonDerivativeSecurity>
		<securityTitle>
			<value>No Shares Owned</value>
		</securityTitle>
		<transactionAmounts>
			<transactionShares>
				<value>0</value>
			</transactionShares>
		</transactionAmounts>
		<ownershipNature>
			<directOrIndirectOwnership>
				<value>D</value>
			</directOrIndirectOwnership>
			<natureOfOwnership>
				<value/>
			</natureOfOwnership>
		</ownershipNature>
	</nonDerivativeSecurity>
	<footnotes>
	</footnotes>
	<ownerSignature>
		<signatureName>By: Paul M. O'Neil, Attorney in Fact</signatureName>
		<signatureDate>2003-07-25</signatureDate>
	</ownerSignature>
</ownershipDocument>

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