<SEC-DOCUMENT>0001752724-21-247478-index.html : 20211119
<SEC-HEADER>0001752724-21-247478.hdr.sgml : 20211119
<ACCEPTANCE-DATETIME>20211119162736
ACCESSION NUMBER:		0001752724-21-247478
CONFORMED SUBMISSION TYPE:	N-CEN/A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20210630
FILED AS OF DATE:		20211119
DATE AS OF CHANGE:		20211119
EFFECTIVENESS DATE:		20211119

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EATON VANCE SENIOR INCOME TRUST
		CENTRAL INDEX KEY:			0001070732
		IRS NUMBER:				043435040

	FILING VALUES:
		FORM TYPE:		N-CEN/A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09013
		FILM NUMBER:		211428681

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CEN/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>LEGAL PROCEEDINGS
<SEQUENCE>2
<FILENAME>NCEN_A_811-09013_746492_0621.txt
<TEXT>
Document 2 - file: NCEN_A_811-09013_746492_0621.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>3
<FILENAME>NCEN_A_811-09013_877068_0621.txt
<TEXT>
Document 3 - file: NCEN_A_811-09013_877068_0621.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>ADVISORY CONTRACTS
<SEQUENCE>4
<FILENAME>NCEN_A_811-09013_115211_0621.htm
<TEXT>
Document 4 - file: NCEN_A_811-09013_115211_0621.htm

</DOCUMENT>
</SEC-DOCUMENT>