    <SEC-DOCUMENT>0001683863-20-003621-index.html : 20200416
    <SEC-HEADER>0001683863-20-003621.hdr.sgml : 20200416
    <ACCEPTANCE-DATETIME>20200416170733
    ACCESSION NUMBER:		0001683863-20-003621
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20200416
    DATE AS OF CHANGE:		20200416
    EFFECTIVENESS DATE:		20200416

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC.
    		CENTRAL INDEX KEY:			0000910068
    		IRS NUMBER:				133735236
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1031

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	811-07920
    		FILM NUMBER:		20797034

    	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:	HIGH INCOME OPPORTUNITY FUND INC
    		DATE OF NAME CHANGE:	19941230

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	SMITH BARNEY HIGH INCOME OPPORTUNITY FUND INC
    		DATE OF NAME CHANGE:	19930913

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	SMITH BARNEY HIGH INCOME FUND INC
    		DATE OF NAME CHANGE:	19930802
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>f3439d1.htm
    <DESCRIPTION>HIO
    <TEXT>
    Document 1 - file: f3439d1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g18857-facingsheet1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g18857-facingsheet1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g18857-facingsheet2x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g18857-facingsheet2x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>hio-nobomailer1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: hio-nobomailer1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>hio-nobomailer2x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: hio-nobomailer2x1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>