<SEC-DOCUMENT>0001193125-17-352632-index.html : 20171127
<SEC-HEADER>0001193125-17-352632.hdr.sgml : 20171127
<ACCEPTANCE-DATETIME>20171127172105
ACCESSION NUMBER:		0001193125-17-352632
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20170930
FILED AS OF DATE:		20171127
DATE AS OF CHANGE:		20171127
EFFECTIVENESS DATE:		20171127

FILER:

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

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22269
		FILM NUMBER:		171223598

	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>N-CSRS
<SEQUENCE>1
<FILENAME>d470431dncsrs.htm
<DESCRIPTION>EATON VANCE NATIONAL MUNICIPAL OPPORTUNITIES TRUST
<TEXT>
Document 1 - file: d470431dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d470431dex99cert.htm
<DESCRIPTION>EX-99.CERT SECTION 302 CERTIFICATION
<TEXT>
Document 2 - file: d470431dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d470431dex99906cert.htm
<DESCRIPTION>EX-99.906CERT SECTION 906 CERTIFICATION
<TEXT>
Document 3 - file: d470431dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g488839dsp_2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g488839dsp_2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g488839g57p32.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g488839g57p32.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g488839u44053_bwlogo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g488839u44053_bwlogo.jpg

</DOCUMENT>
</SEC-DOCUMENT>