<SEC-DOCUMENT>0001193125-23-220214-index.html : 20230824
<SEC-HEADER>0001193125-23-220214.hdr.sgml : 20230824
<ACCEPTANCE-DATETIME>20230824165613
ACCESSION NUMBER:		0001193125-23-220214
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20230630
FILED AS OF DATE:		20230824
DATE AS OF CHANGE:		20230824
EFFECTIVENESS DATE:		20230824

FILER:

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

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09013
		FILM NUMBER:		231202798

	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-CSR
<SEQUENCE>1
<FILENAME>d496734dncsr.htm
<DESCRIPTION>EATON VANCE SENIOR INCOME TRUST
<TEXT>
Document 1 - file: d496734dncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>2 <FILENAME>d496734dex99cert.htm <DESCRIPTION>SECTION 302 CERTIFICATION <TEXT> Document 2 - file: d496734dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>3 <FILENAME>d496734dex99906cert.htm <DESCRIPTION>SECTION 906 CERTIFICATION <TEXT> Document 3 - file: d496734dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.D <SEQUENCE>4 <FILENAME>d496734dex99d.htm <DESCRIPTION>CONSENT <TEXT> Document 4 - file: d496734dex99d.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>5 <FILENAME>evsit-20230630.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA <TEXT> Document 5 - file: evsit-20230630.xsd
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g496734img09f9c4303.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g496734img09f9c4303.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g496734img2130a4841.gif <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g496734img2130a4841.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g496734img87c2e0722.gif <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g496734img87c2e0722.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g496734img8a95a7114.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g496734img8a95a7114.jpg
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>11 <FILENAME>d496734dncsr_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 11 - file: d496734dncsr_htm.html
Document 11 - RAW XML: d496734dncsr_htm.xml
</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>12 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>14 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>15 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: FilingSummary.html
Document 15 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>18 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 18 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>19 <FILENAME>0001193125-23-220214-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 19 - file: 0001193125-23-220214-xbrl.zip
</DOCUMENT> </SEC-DOCUMENT>