<SEC-DOCUMENT>0000940394-16-002624-index.html : 20160527
<SEC-HEADER>0000940394-16-002624.hdr.sgml : 20160527
<ACCEPTANCE-DATETIME>20160527131301
ACCESSION NUMBER:		0000940394-16-002624
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20160331
FILED AS OF DATE:		20160527
DATE AS OF CHANGE:		20160527
EFFECTIVENESS DATE:		20160527

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Eaton Vance National Municipal Opportunities Trust
		CENTRAL INDEX KEY:			0001454741
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22269
		FILM NUMBER:		161681363

	BUSINESS ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-482-8260

	MAIL ADDRESS:	
		STREET 1:		TWO INTERNATIONAL PLACE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Eaton Vance National Municipal Trust
		DATE OF NAME CHANGE:	20090126
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>natlopps33116.fil
<DESCRIPTION>NATIONAL MUNICIPAL OPPORTUNITIES TRUST
<TEXT>
Document 1 - file: natlopps33116.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>ic-natlopps33116.txt
<DESCRIPTION>ACCOUNTANTS REPORT ON INTERNAL CONTROL
<TEXT>
Document 2 - file: ic-natlopps33116.txt

</DOCUMENT>
</SEC-DOCUMENT>