<SEC-DOCUMENT>0001193125-18-208868-index.html : 20180629
<SEC-HEADER>0001193125-18-208868.hdr.sgml : 20180629
<ACCEPTANCE-DATETIME>20180629113703
ACCESSION NUMBER:		0001193125-18-208868
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20180430
FILED AS OF DATE:		20180629
DATE AS OF CHANGE:		20180629
EFFECTIVENESS DATE:		20180629

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC.
		CENTRAL INDEX KEY:			0000830487
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05497
		FILM NUMBER:		18927952

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		49TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		888-777-0102

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		49TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNICIPAL HIGH INCOME FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPECIAL OPPORTUNITIES MUNICIPAL FUND INC
		DATE OF NAME CHANGE:	19881025
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d535950dncsrs.htm
<DESCRIPTION>WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC. (MHF)
<TEXT>
Document 1 - file: d535950dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d535950dex99cert.htm
<DESCRIPTION>302 CERTIFICATIONS
<TEXT>
Document 2 - file: d535950dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d535950dex99906cert.htm
<DESCRIPTION>906 CERTIFICATIONS
<TEXT>
Document 3 - file: d535950dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g535950g11r76.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g535950g11r76.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g535950g12u83.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g535950g12u83.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g535950g13k79.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g535950g13k79.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g535950g13v29.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g535950g13v29.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g535950g51e61.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g535950g51e61.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g535950g72d11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g535950g72d11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g535950janetrust_photo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g535950janetrust_photo.jpg

</DOCUMENT>
</SEC-DOCUMENT>