<SEC-DOCUMENT>0000940394-18-001048-index.html : 20180529
<SEC-HEADER>0000940394-18-001048.hdr.sgml : 20180529
<ACCEPTANCE-DATETIME>20180529135557
ACCESSION NUMBER:		0000940394-18-001048
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180331
FILED AS OF DATE:		20180529
DATE AS OF CHANGE:		20180529
EFFECTIVENESS DATE:		20180529

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:		18863794

	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>eotnsar33118.fil
<TEXT>
Document 1 - file: eotnsar33118.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>ic-eot33118.txt
<TEXT>
Document 2 - file: ic-eot33118.txt

</DOCUMENT>
</SEC-DOCUMENT>