SCHEDULE 14A
                                 (Rule 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION

                Proxy Statement Pursuant to Section 14(a) of the
                Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant   [X]
Filed by a Party other than the Registrant   [  ]

Check the appropriate box:
[ ] Preliminary Proxy Statement             [ ] Confidential, For Use of the
                                                Commission Only (as permitted by
[X] Definitive Proxy Statement                  Rule 14a-6(e)(2))
[ ] Definitive Additional Materials
[ ] Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12

--------------------------------------------------------------------------------
                         Eaton Vance Senior Income Trust
                (Name of Registrant as Specified in Its Charter)
--------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[X] No fee required.
[ ] Fee computed on table below per Exchange Act Rules 14a-6(i) (1) and 0-11.

(1) Title of each class of securities to which transaction applies:
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(2) Aggregate number of securities to which transaction applies:
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(3) Per unit price or other underlying value of transaction computed pursuant to
Exchange  Act Rule  0-11  (set  forth the  amount  on which  the  filing  fee is
calculated and state how it was determined):
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(4) Proposed maximum aggregate value of transaction:
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(5) Total fee paid:
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[ ] Fee paid previously with preliminary materials.
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[ ] Check box if any part of the fee is offset as provided by Exchange  Act Rule
0-11(a)(2)  and  identify  the  filing  for  which the  offsetting  fee was paid
previously.  Identify the previous filing by registration  statement  number, or
the form or schedule and the date of its filing.

(1) Amount Previously Paid:
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(2) Form, Schedule or Registration Statement no.:
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(3) Filing Party:
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(4) Date Filed:
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                         EATON VANCE SENIOR INCOME TRUST
                            THE EATON VANCE BUILDING
                                255 STATE STREET
                           BOSTON, MASSACHUSETTS 02109

                                                               September 6, 2002


Dear Shareholder:

     You are cordially  invited to attend the Annual Meeting of  Shareholders of
Eaton Vance Senior Income Trust (the "Fund") to be held at the principal  office
of the Fund, The Eaton Vance Building, 255 State Street,  Boston,  Massachusetts
02109, on Friday, October 25, 2002 at 1:30 P.M. (Boston time).

     At this meeting you will be asked to consider the election of Trustees. The
enclosed proxy statement contains additional information.

     We hope that you will be able to attend  the  meeting.  Whether  or not you
plan to attend and  regardless  of the number of shares you own, it is important
that  your  shares be  represented.  I urge you to  complete,  sign and date the
enclosed proxy card and return it in the enclosed  postage-paid envelope as soon
as possible to assure that your shares are represented at the meeting.

                                        Sincerely,

                                        /s/ James B. Hawkes

                                        James B. Hawkes
                                        President and Trustee


                                    IMPORTANT

IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE ANNUAL  MEETING.  WHETHER
OR NOT YOU PLAN TO ATTEND THE ANNUAL  MEETING IN PERSON,  YOU ARE  REQUESTED  TO
COMPLETE,  SIGN AND RETURN THE ENCLOSED PROXY CARD AS SOON AS POSSIBLE.  YOU MAY
WITHDRAW  YOUR  PROXY IF YOU ATTEND  THE  ANNUAL  MEETING  AND DESIRE TO VOTE IN
PERSON.


                         EATON VANCE SENIOR INCOME TRUST


                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS
                       TO BE HELD FRIDAY, OCTOBER 25, 2002

     The Annual  Meeting of  Shareholders  of Eaton Vance Senior Income Trust, a
Massachusetts  business trust (the "Fund"), will be held at the principal office
of the Fund, The Eaton Vance Building, 255 State Street,  Boston,  Massachusetts
02109, on Friday, October 25, 2002 at 1:30 P.M. (Boston time), for the following
purposes:

     1.   To elect  three  Trustees  of the Fund,  one of whom  shall be elected
          solely by the holders of the Fund's Auction Preferred Shares.

     2.   To consider and act upon any other  matters  which may  properly  come
          before the meeting and any adjourned session thereof.

     The Board of Trustees has fixed the close of business on August 29, 2002 as
the record date for the  determination  of the shareholders of the Fund entitled
to notice of and to vote at the meeting and any adjournments thereof.

                                        By Order of the Board of Trustees

                                        /s/ Alan R. Dynner

                                        Alan R. Dynner
                                        Secretary

September 6, 2002
Boston, Massachusetts

IMPORTANT  -  SHAREHOLDERS  CAN HELP THE BOARD OF TRUSTEES OF THE FUND AVOID THE
NECESSITY AND ADDITIONAL EXPENSE TO THE FUND OF FURTHER  SOLICITATIONS TO OBTAIN
A QUORUM BY PROMPTLY  RETURNING  THE  ENCLOSED  PROXY.  THE  ENCLOSED  ADDRESSED
ENVELOPE  REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES AND IS INTENDED FOR
YOUR CONVENIENCE.


                         EATON VANCE SENIOR INCOME TRUST
                            THE EATON VANCE BUILDING
                                255 STATE STREET
                           BOSTON, MASSACHUSETTS 02109


                                 PROXY STATEMENT

     A proxy is  enclosed  with the  foregoing  Notice of the Annual  Meeting of
Shareholders of Eaton Vance Senior Income Trust (the "Fund"), to be held October
25, 2002 for the benefit of shareholders  who do not expect to be present at the
meeting. This proxy is solicited on behalf of the Board of Trustees of the Fund,
and is revocable by the person  giving it prior to exercise by a signed  writing
filed with the Fund's  Secretary,  or by executing and  delivering a later dated
proxy,  or by attending the meeting and voting the shares in person.  Each proxy
will be voted in accordance with its  instructions;  if no instruction is given,
an executed proxy will authorize the persons named as attorneys, or any of them,
to vote in favor of the election of each Trustee.  This proxy  material is being
mailed to shareholders on or about September 6, 2002.

     The Board of Trustees  of the Fund has fixed the close of  business  August
29, 2002, as the record date for the determination of the shareholders  entitled
to  notice  of  and to  vote  at  the  meeting  and  any  adjournments  thereof.
Shareholders at the close of business on the record date will be entitled to one
vote for each share held. As of August 29, 2002, there were [                  ]
Common Shares of beneficial interest, $.01 par value per share ("Common Shares")
and 4,400  Auction  Preferred  Shares,  $.01 per value  per  share,  liquidation
preference $25,000 per share ("APS"), of the Fund outstanding.  As of such date,
no shareholder  beneficially  owned more than 5% of the outstanding  shares. The
Trustees and officers of the Fund, as a group, own beneficially  less than 1% of
the shares of the Fund.

     The Board of  Trustees  of the Fund  knows of no  business  other than that
mentioned  in Item 1 of the  Notice  of  Meeting  which  will be  presented  for
consideration.  If any other matters are properly presented, it is the intention
of the persons  named as attorneys in the enclosed  proxy to vote the proxies in
accordance with their judgment on such matters.

                        PROPOSAL 1. ELECTION OF TRUSTEES

     The Fund's  Declaration  of Trust provides that the Board of Trustees shall
be  divided  into  three  classes.  The term of office  of the Class I  Trustees
expires on the date of the 2002  Annual  Meeting,  and the term of office of the
Class II and Class  III  Trustees  will  expire  one and two  years  thereafter,
respectively.  Trustees  chosen to succeed the Trustees whose terms are expiring
will be elected for a three-year  term. An effect of staggered terms is to limit
the ability of entities or persons to acquire control of the Fund.

     The Fund's  Declaration  of Trust  provides that a majority of the Trustees
shall fix the number of the entire  Board and that such number shall be at least
two and no greater than  fifteen.  The Board has fixed the number of Trustees at
seven.  Proxies will be voted for the election of the following  nominees.  Each
nominee is  currently  serving as a Trustee and has  consented to continue to so
serve.  In the event that a nominee is unable to serve for any reason  (which is
not now expected) when the election occurs, the accompanying Proxy will be voted
for such other person or persons as the Board of Trustees may recommend.

     The  nominees  for Class I Trustees to serve until the 2005 Annual  Meeting
are Jessica M.  Bibliowicz,  Donald R. Dwight and James B. Hawkes.  The Trustees
serving  until the 2003 Annual  Meeting  are Samuel L. Hayes,  III and Norton H.
Reamer. The Trustees serving until the 2004 Annual Meeting are Lynn A. Stout and
Jack L. Treynor.

                                       1


     The nominees and Trustees and their principal  occupations for at least the
last five years are as follows.

INTERESTED TRUSTEES

     James B. Hawkes is an  "interested  person"  (as defined in the  Investment
Company Act of 1940 (the "1940 Act")) by reason of his  affiliations  with Eaton
Vance Management  ("EVM" or "Eaton Vance") the Fund's  investment  adviser,  and
Eaton Vance Corp.  ("EVC"),  a publicly traded holding company which  indirectly
owns all the outstanding  stock of EVM; and of EVM's trustee,  Eaton Vance, Inc.
("EV"),  which  is a  wholly-owned  subsidiary  of EVC.  (EVM,  EVC,  and  their
affiliates are sometimes referred to collectively as the "EVC organization".)

     Jessica M. Bibliowicz is an "interested  person" because of her affiliation
with a brokerage firm that is and has been a dealer in shares of Funds for which
EVM acts as investment adviser.

ELECTION OF TRUSTEES BY APS AND COMMON SHARES

     Under the terms of the Fund's  By-Laws,  as amended  (the  "By-Laws"),  the
holders of the APS are entitled as a class,  to the  exclusion of the holders of
the Common  Shares,  to elect two Trustees of the Fund  (identified  by an "(A)"
after their names  below).  Donald R. Dwight has been  nominated for election by
the holders of the APS.  The  By-Laws  further  provide for the  election of the
other  nominees  named  below by the  holders of the Common  Shares and the APS,
voting as a single class. Election of Trustees is non-cumulative.

                                    TRUSTEES


                                                                                                   NUMBER OF
                                                                                                  PORTFOLIOS
                                             TERM OF                                                IN FUND         OTHER
                              POSITION(S)  OFFICE AND                                               COMPLEX     DIRECTORSHIPS
NAME, ADDRESS                  HELD WITH    LENGTH OF   PRINCIPAL OCCUPATIONS DURING PAST FIVE    OVERSEEN BY      HELD BY
AND AGE(1)                       FUND      TIME SERVED                   YEARS                    TRUSTEE(2)       TRUSTEE
----------------------------- ------------ ------------ ---------------------------------------- -------------- ---------------

                                        (FOR TRUSTEES NOMINATED FOR ELECTION IN 2002:)
                                                                                                 
JESSICA M. BIBLIOWICZ         Trustee      Until 2002.  President and Chief Executive Officer of       174      None
DOB:  11/28/59                             3 years.     National Financial Partners (a financial
                                           Trustee      services company) (since April 1999).
                                           since 1999.  President and Chief Operating Officer of
                                                        John A. Levin & Co. (a registered
                                                        investment advisor) (July 1997 to April
                                                        1999) and a Director of Baker, Fentress
                                                        & Company which owns John A. Levin & Co.
                                                        (July 1997 to April 1999).

DONALD R. DWIGHT (A)          Trustee      Until 2002.  President of Dwight Partners, Inc. (a          179      Trustee/
DOB:  3/26/31                              3 years.     corporate relations and communications                  Director of
                                           Trustee      company).                                               the Royce
                                           since 1998.                                                          Funds (mutual
                                                                                                                funds)
                                       2


                                                                                                   NUMBER OF
                                                                                                  PORTFOLIOS
                                             TERM OF                                                IN FUND         OTHER
                              POSITION(S)  OFFICE AND                                               COMPLEX     DIRECTORSHIPS
NAME, ADDRESS                  HELD WITH    LENGTH OF   PRINCIPAL OCCUPATIONS DURING PAST FIVE    OVERSEEN BY      HELD BY
AND AGE(1)                       FUND      TIME SERVED                   YEARS                    TRUSTEE(2)       TRUSTEE
----------------------------- ------------ ------------ ---------------------------------------- -------------- ---------------

JAMES B. HAWKES               President    Until 2002.  Chairman, President and Chief                 179       Director of
DOB:  11/9/41                 and Trustee  3 years.     Executive Officer of EVM, and its                       EVC
                                           Trustee      corporate parent and trustee (EVC and
                                           since 1998.  EV); Vice President and Director of
                                                        Eaton Vance Distributors, Inc.;
                                                        Director of EV.

                                              (FOR OTHER INDEPENDENT TRUSTEES:)

SAMUEL L. HAYES, III (A)      Trustee      Until 2003.  Jacob H. Schiff Professor of                  179       Director of Tiffany
DOB:  2/23/35                              3 years.     Investment Banking Emeritus, Harvard                    & Co. (specialty
                                           Trustee      University Graduate School of Business                  retailer) and
                                           since 1998.  Administration.                                         Telect, Inc.
                                                                                                                (telecommunication
                                                                                                                services company)

NORTON H. REAMER              Trustee      Until 2003.  President, Unicorn Corporation (an            179       None
DOB:  9/21/35                              3 years.     investment and financial advisory
                                           Trustee      services company) (since September
                                           since 1998.  2000).  Chairman, Hellman, Jordan
                                                        Management Co., Inc. (an investment
                                                        management company) (since November
                                                        2000).  Advisory Director of Berkshire
                                                        Capital Corporation (investment
                                                        banking firm) (since June 2002).
                                                        Formerly Chairman of the Board, United
                                                        Asset Management Corporation (a
                                                        holding company owning institutional
                                                        investment management firms) and
                                                        Chairman, President and Director, UAM
                                                        Funds (mutual funds).

LYNN A. STOUT                 Trustee      Until 2004.  Professor of Law, University of               173            None
DOB:  9/14/56                              3 years.     California at Los Angeles, School of
                                           Trustee      Law (since July 2001).  Formerly,
                                           since 1999.  Professor of Law, Georgetown
                                                        University Law Center.

JACK L. TREYNOR               Trustee      Until 2004.  Investment Adviser and Consultant.            171            None
DOB:  2/21/30                              3 years.
                                           Trustee
                                           since 1998.


     (1)  The business address of each Trustee is The Eaton Vance Building,  255
          State Street, Boston, MA 02109.

     (2)  Includes both master and feeder funds in master-feeder structure.

     The following table shows the dollar range of shares  beneficially owned in
the Fund and in all Eaton Vance funds by each Trustee:


                                                                                  AGGREGATE DOLLAR RANGE OF EQUITY
                                                    DOLLAR RANGE OF                 SECURITIES IN ALL EATON VANCE
NAME OF TRUSTEE                                    FUND SHARES HELD                   FUNDS OVERSEEN BY TRUSTEE
---------------------------------------- -------------------------------------- --------------------------------------
                                                                                    
Jessica M. Bibliowicz                                    None                             $10,001 - $50,000
Donald R. Dwight                                         None                              Over $100,000*
James B. Hawkes                                      Over $100,000                          Over $100,000
Samuel L. Hayes                                   $50,001-$100,000**                       Over $100,000*
Norton H. Reamer                                         None                               Over $100,000
Lynn A. Stout                                            None                            $10,001 - $50,000*
Jack L. Treynor                                          None                                $1-$10,000


     *    Includes shares held in trustee deferred compensation plan.
     **   Shares are owned by Mr. Hayes' spouse.

                                       3


BOARD MEETINGS AND COMMITTEES

     During the fiscal year ended June 30,  2002,  the  Trustees of the Fund met
eight times, the Nominating Committee met three times, the Special Committee met
four times and the Audit  Committee  met three times.  Each Trustee  attended at
least 75% of the Board and committee meetings on which he or she serves.

     The  Nominating  Committee  is  comprised  of all the  Trustees who are not
"interested persons" as that term is defined under the 1940 Act. Messrs. Treynor
(Chairman),  Dwight,  Hayes,  Reamer and Ms. Stout are currently  serving on the
Committee.  The purpose of the  Committee is to recommend to the Board  nominees
for the position of noninterested trustee and to assure that at least a majority
of the Board of Trustees is independent of Eaton Vance and its  affiliates.  The
Board will,  when a vacancy exists or is  anticipated,  consider any nominee for
trustee  recommended by a shareholder if such recommendation is submitted to the
Board in writing and contains sufficient background  information  concerning the
individual  to  enable  a  proper  judgment  to be made as to such  individual's
qualifications.

     Messrs. Hayes (Chairman),  Dwight,  Reamer and Ms. Stout are members of the
Special  Committee  of the Board of  Trustees  of the Fund.  The  purpose of the
Special Committee is to consider,  evaluate and make recommendations to the full
Board concerning (i) all contractual  arrangements with service providers to the
Fund, including investment advisory, administrative,  transfer agency, custodial
and fund  accounting  and  distribution  services  (if any),  and (ii) all other
matters in which  Eaton  Vance or its  affiliates  has any  actual or  potential
conflict of interest with the Fund or its shareholders.

     Messrs.  Treynor  (Chairman),  Dwight and  Reamer are  members of the Audit
Committee of the Board of Trustees of the Fund.  Each member is  independent  of
the Fund, as defined by New York Stock  Exchange  Listing  Standards.  The Audit
Committee's functions include making  recommendations to the Board regarding the
selection of the independent certified public accountants, and reviewing matters
relative  to trading  and  brokerage  policies  and  practices,  accounting  and
auditing  practices and  procedures,  accounting  records,  internal  accounting
controls,  and the  functions  performed by the  custodian,  transfer  agent and
dividend  disbursing  agent of the  Fund.  Set  forth  below  under  "Additional
Information" is the Audit Committee's Report.

REMUNERATION OF TRUSTEES

     The fees and expenses of those  Trustees of the Fund who are not members of
the Eaton Vance organization will be paid by the Fund. For the fiscal year ended
June 30,  2002,  the  noninterested  Trustees of the Fund  earned the  following
compensation in their capacities as Trustees of the Fund, and for the year ended
December  31, 2001 earned the  following  compensation  in their  capacities  as
Trustees of the funds in the Eaton Vance fund complex(1):

                                                           TOTAL
                                AGGREGATE               COMPENSATION
                               COMPENSATION              FROM FUND
NAME OF TRUSTEE                 FROM FUND             AND FUND COMPLEX
---------------                ------------           ----------------
Jessica M. Bibliowicz             $3,424                 $ 160,000
Donald R. Dwight                  $3,319                   162,500(2)
Samuel L. Hayes, III              $3,574                   170,000
Norton H. Reamer                  $3,274                   160,000
Lynn A. Stout                     $3,508                   160,000(3)
Jack L. Treynor                   $3,578                   170,000

(1)  As of August 1,  2002,  the  Eaton  Vance  fund  complex  consisted  of 180
     registered investment companies or series thereof.
(2)  Includes $60,000 of deferred compensation.
(3)  Includes $16,000 of deferred compensation.

                                       4


     Trustees of the Fund who are not  affiliated  with Eaton Vance may elect to
defer receipt of all or a percentage of their annual fees in accordance with the
terms of a Trustees Deferred Compensation Plan (the "Trustees' Plan"). Under the
Trustees' Plan, an eligible Trustee may elect to have his deferred fees invested
by the Fund in the  shares  of one or more  funds in the  Eaton  Vance  Group of
Funds,  and the amount paid to the  Trustees  under the  Trustees'  Plan will be
determined based upon the performance of such investments. Deferral of Trustees'
fees in accordance with the Trustees' Plan will have a negligible  effect on the
Fund's assets, liabilities,  and net income per share, and will not obligate the
Fund to retain  the  services  of any  trustee or  obligate  the Fund to pay any
particular  level of  compensation  to the  trustee.  The  Fund  does not have a
retirement plan for its Trustees.

     The Trustees shall be elected by the affirmative  vote of a majority of the
Fund's shares voting at the Annual Meeting.

     THE BOARD OF TRUSTEES RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE ELECTION OF
THE THREE NOMINEES TO THE FUND'S BOARD OF TRUSTEES.

                       NOTICE TO BANKS AND BROKER/DEALERS

     The Fund has previously solicited all Nominee and Broker/Dealer accounts as
to the  number of  additional  proxy  statements  required  to supply  owners of
shares.  Should  additional  proxy material be required for  beneficial  owners,
please  forward such requests to PFPC Inc.  Attention:  Mr. Joseph P.  Lundbohm,
P.O. Box 43027, Providence, RI 02940-3027.

                             ADDITIONAL INFORMATION

AUDIT COMMITTEE REPORT.  The Audit Committee  reviewed and discussed the audited
financial  statements with Fund  management.  The Audit Committee also discussed
with the  independent  auditors  the matters  required to be discussed by SAS 61
(Codification of Statements on Auditing Standards). The Audit Committee received
the written disclosures and the letter from the independent accountants required
by Independence  Standards  Board Standard No. 1  (Independence  Standards Board
Standard No. 1, Independence  Discussions with Audit Committees),  and discussed
with the independent accountants their independence.

     Based on the review and discussions  referred to above, the Audit Committee
recommended  to the Board of Trustees that the audited  financial  statements be
included in the Fund's annual report to  shareholders  for the fiscal year ended
June 30, 2002 for filing with the Securities and Exchange Commission.

                                        Jack L. Treynor, Chairman
                                        Donald R. Dwight
                                        Norton H. Reamer

AUDITORS, AUDIT FEES AND ALL OTHER FEES. Deloitte & Touche LLP ("Deloitte"), 200
Berkeley Street, Boston,  Massachusetts 02116, serves as independent accountants
of the Fund.  Deloitte is expected to be represented at the Annual Meeting,  but
if not, a  representative  will be available  by  telephone  should the need for
consultation  arise. For the most recent fiscal year, the Fund paid an aggregate
of $117,000 in professional fees to their auditors,  Deloitte,  of which $82,000
was paid for audit  services and $35,000 was paid for other  services.  Deloitte
also provides services to numerous other investment companies sponsored by Eaton
Vance. Total fees paid to Deloitte by Eaton Vance Corp. (and its affiliates) for
the most recent  fiscal year ended October 31, 2001 were  $1,162,903.  The Audit
Committee  and Board of  Trustees of the Fund are aware that  Deloitte  provides
services to the Eaton Vance organization.

                                       5



OFFICERS OF THE FUND.  The  officers of the Fund and their length of service are
set forth below. Because of their positions with Eaton Vance and their ownership
of Eaton Vance Corp.  stock,  the  officers  of the Fund will  benefit  from the
advisory  and  administration  fees paid by the Fund to Eaton  Vance.  As of the
record date, the officers of the Fund owned 18,000 shares.


                                              TERM OF OFFICE
                               POSITION(S)     AND LENGTH OF                        PRINCIPAL OCCUPATIONS
NAME, ADDRESS AND AGE(1)     HELD WITH FUND     TIME SERVED                       DURING PAST FIVE YEARS(2)
---------------------------- ---------------- ----------------- ---------------------------------------------------------------
                                                       
ALAN R. DYNNER               Secretary        Since 1998        Vice President, Secretary and Chief Legal Officer of BMR,
DOB:  10/10/40                                                  Eaton Vance, EVD and EVC.  Officer of 179 investment
                                                                companies managed by Eaton Vance or BMR.

JAMES L. O'CONNOR            Treasurer        Since 1998        Vice President of BMR, Eaton Vance and EVD.  Officer of 179
DOB:  4/1/45                                                    investment companies managed by Eaton Vance or BMR.

SCOTT H. PAGE                Vice President   Since 1998        Vice President of Eaton Vance and BMR.  Officer of 11
DOB:  11/30/59                                                  investment companies managed by Eaton Vance or BMR.

JOHN P. REDDING              Vice President   Since 2001        Vice President of Eaton Vance and BMR.  Officer of 1
DOB:  3/21/63                                                   investment company managed by Eaton Vance or BMR.

PAYSON F. SWAFFIELD          Vice President   Since 1998        Vice President of Eaton Vance and BMR.  Officer of 11
DOB:  8/13/56                                                   investment companies managed by Eaton Vance or BMR.

MICHAEL W. WEILHEIMER        Vice President   Since 1998        Vice President of Eaton Vance and BMR.  Officer of 8
DOB:  2/11/61                                                   investment companies managed by Eaton Vance or BMR.


     (1)  The business address of each Trustee is The Eaton Vance Building,  255
          State Street, Boston, MA 02109.
     (2)  Includes both master and feeder funds in master-feeder structure.

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING  COMPLIANCE.  Samuel L. Hayes, III,
Trustee,  filed late two reports required to be filed under Section 16(a) of the
Securities Exchange Act of 1934 regarding a purchase of shares of the Fund.

INVESTMENT ADVISER AND ADMINISTRATOR.  Eaton Vance Management with its principal
office at The Eaton Vance  Building,  255 State  Street,  Boston,  Massachusetts
02109, serves as the investment adviser and administrator to the Fund.

PROXY  SOLICITATION  AND  TABULATION.  The expense of  preparing,  printing  and
mailing this Proxy Statement and enclosures and the costs of soliciting  proxies
on  behalf  of the  Board of  Trustees  of the Fund  will be borne by the  Fund.
Proxies  will  be  solicited  by mail  and  may be  solicited  in  person  or by
telephone,  telegraph or facsimile by officers of the Fund,  by personnel of its
administrator,   Eaton  Vance,  by  the  transfer   agent,   PFPC  Inc.,  or  by
broker-dealer  firms.  The expenses  connected  with the  solicitation  of these
proxies  and with any  further  proxies  which may be  solicited  by the  Fund's
officers,  by Eaton Vance  personnel,  by the transfer  agent,  PFPC Inc., or by
broker-dealer  firms, in person,  or by telephone,  by telegraph or by facsimile
will be borne by the Fund.  A written  proxy may be delivered to the Fund or its
transfer agent prior to the meeting by facsimile machine,  graphic communication
equipment or similar  electronic  transmission.  The Fund will reimburse  banks,
broker-dealer  firms, and other persons holding shares registered in their names
or in the names of their nominees,  for their expenses incurred in sending proxy
material to and  obtaining  proxies from the  beneficial  owners of such shares.
Total estimated costs are $15,000.

                                       6


     All proxy  cards  solicited  by the  Board of  Trustees  that are  properly
executed and received by the Secretary  prior to the meeting,  and which are not
revoked,  will be voted at the meeting.  Shares represented by such proxies will
be voted in accordance with the  instructions  thereon.  If no  specification is
made on the proxy  card with  respect  to  Proposal  1, it will be voted for the
matters  specified  on the proxy  card.  All shares  that are voted and votes to
ABSTAIN will be counted towards  establishing a quorum, as will broker non-votes
for  matters  required  by the 1940 Act to be  approved  by a  "majority  of the
outstanding  voting  securities" of the Fund.  (Broker  non-votes are shares for
which (i) the  beneficial  owner has not voted and (ii) the broker  holding  the
shares does not have discretionary  authority to vote on the particular matter.)
Accordingly,  abstentions and broker non-votes will assist the Fund in obtaining
a quorum but will have no effect on the outcome of Proposal 1.

     In the event that sufficient votes by the shareholders of the Fund in favor
of any  Proposal  set forth in the Notice of this  meeting  are not  received by
October 25, 2002,  the persons  named as  attorneys  in the  enclosed  proxy may
propose one or more  adjournments of the meeting to permit further  solicitation
of proxies.  A shareholder  vote may be taken on one or more of the Proposals in
this Proxy  Statement  prior to such  adjournment if sufficient  votes have been
received and it is otherwise appropriate.  Any such adjournment will require the
affirmative vote of the holders of a majority of the shares present in person or
by proxy at the session of the  meeting to be  adjourned.  The persons  named as
attorneys in the  enclosed  proxy will vote in favor of such  adjournment  those
proxies  which  they are  entitled  to vote in favor of the  Proposal  for which
further  solicitation  of proxies is to be made. They will vote against any such
adjournment those proxies required to be voted against such Proposal.  The costs
of any such additional  solicitation and of any adjourned  session will be borne
by the Fund.

     THE FUND  WILL  FURNISH,  WITHOUT  CHARGE A COPY OF THE  FUND'S  ANNUAL  OR
SEMI-ANNUAL  REPORTS TO ANY SHAREHOLDER UPON REQUEST.  SHAREHOLDERS  DESIRING TO
OBTAIN A COPY OF SUCH REPORT SHOULD WRITE TO THE FUND C/O PFPC INC.,  ATTN:  MR.
JOSEPH  P.  LUNDBOHM,  P.O.  BOX  43027,  PROVIDENCE,  RI  02940-3027,  OR  CALL
1-800-331-1710.

                              SHAREHOLDER PROPOSALS

     Any  proposals  of  shareholders  that are  intended to be presented at the
Fund's  2003  Annual  Meeting of  Shareholders  must be  received  at the Fund's
principal  office no later  than June 14,  2003 and must  comply  with all legal
requirements  in order to be included in the Fund's proxy  statement and form of
proxy for that meeting.

                                                EATON VANCE SENIOR INCOME TRUST

September 6, 2002

                                       7


                                      PROXY

                         EATON VANCE SENIOR INCOME TRUST

                ANNUAL MEETING OF SHAREHOLDERS, OCTOBER 25, 2002
                 PROXY SOLICITED ON BEHALF OF BOARD OF TRUSTEES


     The  undersigned  holder of shares of  beneficial  interest  of Eaton Vance
Senior  Income  Trust,  a  Massachusetts  business  trust (the  "Fund"),  hereby
appoints  JAMES B.  HAWKES,  ALAN R. DYNNER and JAMES L.  O'CONNOR,  and each of
them,  with full power of substitution  and revocation,  as proxies to represent
the  undersigned at the Annual Meeting of Shareholders of the Fund to be held at
the principal  office of the Fund, The Eaton Vance  Building,  255 State Street,
Boston,  Massachusetts  02109, on Friday,  October 25, 2002 at 1:30 P.M., and at
any and all adjournments  thereof, and to vote all shares of beneficial interest
of the Fund which the undersigned would be entitled to vote, with all powers the
undersigned  would  possess  if  personally  present,  in  accordance  with  the
instructions on this proxy.

              PLEASE VOTE, DATE, AND SIGN ON OTHER SIDE AND RETURN
                         PROMPTLY IN ENCLOSED ENVELOPE.


                   CONTINUED AND TO BE SIGNED ON REVERSE SIDE


SEE REVERSE                                                          SEE REVERSE
   SIDE                                                                 SIDE


         PLEASE MARK
[  X  ]  VOTES AS IN
         THIS EXAMPLE.

WHEN THIS PROXY IS  PROPERLY  EXECUTED,  THE SHARES  REPRESENTED  HEREBY WILL BE
VOTED AS SPECIFIED.  IF NO  SPECIFICATION  IS MADE, THIS PROXY WILL BE VOTED FOR
THE PROPOSAL SET FORTH BELOW AND IN THE  DISCRETION  OF THE PROXIES WITH RESPECT
TO ALL OTHER MATTERS  WHICH MAY PROPERLY COME BEFORE THE ANNUAL  MEETING AND ANY
ADJOURNMENTS  THEREOF. THE UNDERSIGNED  ACKNOWLEDGES RECEIPT OF THE ACCOMPANYING
NOTICE OF ANNUAL MEETING AND PROXY STATEMENT.


1.       To elect two Trustees of the Fund as follows:
         NOMINEES:  (01)  Jessica M. Bibliowicz and
                    (02)  James B. Hawkes


             FOR                          WITHHELD
             ALL      [      ]   [      ] FROM ALL
        NOMINEES                          NOMINEES

[     ]  -------------------------------------
         (Instructions:  To withhold authority to vote for any
          nominee, write those nominees' names above.)


                        MARK HERE FOR ADDRESS CHANGE AND NOTE AT LEFT  [       ]

                        MARK HERE FOR COMMENT AND NOTE AT LEFT         [       ]


                    Please sign this proxy  exactly as your name  appears on the
                    books of the Fund. Joint owners should each sign personally.
                    Trustees and other fiduciaries  should indicate the capacity
                    in which they sign, and where more than one name appears,  a
                    majority must sign. If a corporation,  this signature should
                    be that of an authorized officer who should state his or her
                    title.


Signature:______________  Date:_________   Signature:_____________ Date:________


                                      PROXY

                         EATON VANCE SENIOR INCOME TRUST

                ANNUAL MEETING OF SHAREHOLDERS, OCTOBER 25, 2002
                 PROXY SOLICITED ON BEHALF OF BOARD OF TRUSTEES



     The undersigned  holder of Auction  Preferred  Shares of Eaton Vance Senior
Income Trust, a Massachusetts business trust (the "Fund"), hereby appoints JAMES
B. HAWKES,  ALAN R. DYNNER and JAMES L.  O'CONNOR,  and each of them,  with full
power of substitution and revocation, as proxies to represent the undersigned at
the  Annual  Meeting  of  Shareholders  of the Fund to be held at the  principal
office of the  Fund,  The  Eaton  Vance  Building,  255  State  Street,  Boston,
Massachusetts  02109,  on Friday,  October 25, 2002 at 1:30 P.M., and at any and
all adjournments  thereof,  and to vote all Auction Preferred Shares of the Fund
which the undersigned would be entitled to vote, with all powers the undersigned
would possess if personally present, in accordance with the instructions on this
proxy.

              PLEASE VOTE, DATE, AND SIGN ON OTHER SIDE AND RETURN
                         PROMPTLY IN ENCLOSED ENVELOPE.


                   CONTINUED AND TO BE SIGNED ON REVERSE SIDE


SEE REVERSE                                                          SEE REVERSE
   SIDE                                                                 SIDE


         PLEASE MARK
[  X  ]  VOTES AS IN
         THIS EXAMPLE.

WHEN THIS PROXY IS  PROPERLY  EXECUTED,  THE SHARES  REPRESENTED  HEREBY WILL BE
VOTED AS SPECIFIED.  IF NO  SPECIFICATION  IS MADE, THIS PROXY WILL BE VOTED FOR
THE PROPOSAL SET FORTH BELOW AND IN THE  DISCRETION  OF THE PROXIES WITH RESPECT
TO ALL OTHER MATTERS  WHICH MAY PROPERLY COME BEFORE THE ANNUAL  MEETING AND ANY
ADJOURNMENTS  THEREOF. THE UNDERSIGNED  ACKNOWLEDGES RECEIPT OF THE ACCOMPANYING
NOTICE OF ANNUAL MEETING AND PROXY STATEMENT.


1.      To elect three Trustees of the Fund as follows:

        (a)     Election of one Trustee to represent Auction Preferred Shares.

                NOMINEE:        (01)  Donald R. Dwight

             FOR                          WITHHELD
             ALL      [      ]   [      ] FROM ALL
        NOMINEES                          NOMINEES

         (b)    Election of two Trustees to represent all Shareholders.

                NOMINEES:       (02)  Jessica M. Bibliowicz and
                                (03)  James B. Hawkes

             FOR                          WITHHELD
             ALL      [      ]   [      ] FROM ALL
        NOMINEES                          NOMINEES

[ ]  -------------------------------------
     (Instructions:  To withhold authority to vote for any nominee,  write those
     nominees' names above.)

                        MARK HERE FOR ADDRESS CHANGE AND NOTE AT LEFT  [       ]

                        MARK HERE FOR COMMENT AND NOTE AT LEFT        [        ]

                    Please sign this proxy  exactly as your name  appears on the
                    books of the Fund. Joint owners should each sign personally.
                    Trustees and other fiduciaries  should indicate the capacity
                    in which they sign, and where more than one name appears,  a
                    majority must sign. If a corporation,  this signature should
                    be that of an authorized officer who should state his or her
                    title.


Signature:______________  Date:______   Signature:________________ Date:________