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PROSPECTUS SUPPLEMENT NO. 17
To Prospectus Dated February 8, 2002
As Supplemented:
July 3, 2006

Eaton Vance Corp.
Non-Voting Common Stock

This Prospectus Supplement No. 17 supplements and amends the Prospectus dated February 8, 2002 of Eaton Vance Corp., as supplemented (the “Prospectus”), relating to the resale of shares of our non-voting common stock deliverable upon exchange of Liquid Yield Option™ Notes due 2031 issued by Eaton Vance Management by certain holders of LYONs™ who are named as selling stockholders in this Prospectus Supplement and the Prospectus.

You should read this Prospectus Supplement in conjunction with the Prospectus. This Prospectus Supplement updates information in the Prospectus, and, accordingly, to the extent inconsistent, the information in this Prospectus Supplement supersedes the information contained in the Prospectus.

Investing in the Notes involves risks. See "Risk Factors" beginning on page 4 of the Prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this Prospectus. Any representation to the contrary is a criminal offense.

The date of this Prospectus Supplement is July 3, 2006.

™ Trademark of Merrill Lynch & Co., Inc.


The table of selling stockholders contained in the Prospectus is hereby amended and restated as set forth below to update entities as selling stockholders. The table below sets forth, as of July 3, 2006, information regarding the beneficial ownership of our non-voting common stock that each selling stockholder may offer pursuant to the Prospectus. The information contained in the table, which gives effect to the change described above, is based solely on information provided by or on behalf of selling stockholders through July 3, 2006. Information about other selling stockholders will be set forth in future prospectus supplements, if required.

SELLING STOCKHOLDERS
 
            Percentage of
    Shares of Non-       Non-Voting
    Voting Common   Shares of Non-   Common
    Stock Beneficially   Voting Common   Stock
    Owned Prior to   Stock That May be   Outstanding
Selling Stockholder (1)   Offering (2)   Offered Hereby (3)   (4)
White River Securities L.L.C.                   62,490                     62,490             * 
Bear Stearns & Co. Inc.                   62,490                     62,490             * 
Julius Baer Multibond Convertbond                   28,732                     28,732             * 
R2 Investments, LDC               287,314                   287,314             * 
KBC Financial Products USA Inc.                   43,098                     43,098             * 
KBC Financial Products (Cayman Islands)           1,278,546             1,278,546             * 
JMG Triton Offshore Fund, Ltd                   41,660                     41,660             * 
UFJ Investments Asia Ltd               287,314                   287,314             * 
MLQA Convertible Securities Arbitrage Ltd.               574,628                   574,628             * 
Deutsche Banc Alex Brown Inc.           1,120,524             1,120,524             * 
First Union International Capital Markets Inc.               287,314                   287,314             * 
Gaia Offshore Master Fund Ltd.               248,526                   248,526             * 
Lyxor Master Fund               387,788                     38,788             * 
Merrill Lynch, Pierce, Fenner & Smith, Inc. (5)               199,684                   199,684             * 
UBS AG LON F/B/O PB               143,658                   143,658             * 
CALAMOS® Convertible Growth and Income             
       Fund – CALAMOS® Investment Trust                   71,828                     71,828             * 
State of Florida, Office of the Treasurer                   71,828                     71,828             * 
TD Securities (USA) Inc.               508,544                   508,544             * 
Dodeca Fund, L.P.                   57,462                     57,462             * 
Akela Capital Master Fund, LLC                   86,194                     86,194             * 
Amaranth L.L.C.               878,730                   870,130             * 
Sunrise Partners Limited Partnership                   71,898                     57,462             * 
Susquehanna Capital Group               359,142                   359,142             * 
Topanga XI                   11,492                     11,492             * 
 
(footnotes on following page)             

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            Percentage of
    Shares of Non-       Non-Voting
    Voting Common   Shares of Non-   Common
    Stock Beneficially   Voting Common   Stock
    Owned Prior to   Stock That May be   Outstanding
Selling Stockholder (1)   Offering (2)   Offered Hereby (3)   (4)
Citigroup Global Markets Ltd.           1,221,084             1,221,084             * 
Canadian Imperial Holdings Inc.               287,314                   287,314             * 
Banc of America Securities LLC                   11,492                     11,492             * 
Citigroup Global Markets Inc.               252,836                   252,836             * 
SultonBrook Capital Portfolio, LP           1,967,095             1,967,095             * 
CSS, LLC                   86,194                     86,194             * 
Argent LowLev Convertible Arbitrage             
       Fund Ltd.                   78,724                     78,724             * 
Argent LowLev Convertible Arbitrage             
       Fund LLC                   17,526                     17,526             * 
Argent LowLev Convertible Arbitrage             
   Fund II, LLC                       1,724                         1,724             * 
Class C Trading Company, Ltd.                   18,388                     18,388             * 
Goldman Sachs & Co.               389,569                   287,314             * 
HFR CA Global Select Master Trust Account                   18,675                     18,675             * 
Lyxor Master Fund             
       Ref: Argent/LowLev CB c/o Argent                   31,030                     31,030             * 
Partners Group Alternative             
       Strategies PCC LTD                   14,365                     14,365             * 
Silver Convertible Arbitrage Fund, LDC                       6,321                         6,321             * 
Xavex Convertible Arbitrage 2 Fund                           575                               575             * 
 
 
Total (6)                 3,187,606    2.3%     
*Less than one percent (1%)             

(1)      The non-voting common stock share figures reported in this table for the various selling stockholders are based on information supplied to us, as of July 3, 2006, by the respective selling stockholders named in the table. As of that date, these selling stockholders had supplied us with information indicating that, collectively, they owned more than the $110,945,000 aggregate principal amount at maturity of LYONs currently outstanding (which amount would be exchangeable into a maximum 3,187,606 shares of non- voting common stock). This reflects, we believe, that one or more selling stockholders supplied us with information for inclusion in the table and then subsequently (i) exercised their right to require EVM to repurchase their LYONs, in whole or in part, for cash on August 13, 2002, pursuant to the terms of the Indenture governing the LYONs; and/or (ii) sold their LYONs in transactions exempt from the registration requirements of the Securities Act of 1933, as amended, to persons who also supplied us information with respect to the shares deliverable upon exchange of the same LYONs.
 
(2)      The number of shares of non-voting common stock deliverable upon exchange of the LYONs are subject to change under certain circumstances described in the Indenture governing the LYONs. As a result, the number of shares of non-voting common stock deliverable upon exchange of the LYONs may increase or decrease at any time.
 

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(3)      Assumes that the full amount of LYONs reported as held by a selling stockholder is exchanged for shares of non-voting common stock at an exchange rate of 28.7314 shares of non-voting common stock per $1,000 principal amount at maturity of LYONs, and that all shares received upon exchange are offered hereunder by that selling stockholder. Since exchange of the LYONs for shares of non-voting common stock is conditioned upon the occurrence of specified events, and since Eaton Vance Management has the right to pay cash in lieu of delivering shares of non-voting common stock upon exchange, there can be no assurance that any selling stockholder will be able to exchange its LYONs, or that it will receive shares of non-voting common stock upon any such exchange.
 
(4)      Calculated based on Rule 13d-3(d)(1)(i) of the Exchange Act, using 127,613,866 shares of non-voting common stock outstanding as of April 30, 2006. In calculating this amount for each holder, we treated as outstanding the number of shares of non-voting common stock deliverable upon exchange of all of that holder’s LYONs, but we did not assume exchange of any other holder’s LYONs.
 
(5)      Merrill Lynch, Pierce, Fenner & Smith, Inc. (“Merrill Lynch”) is not aware of any position, office, or directorship relationship with the company or its affiliates; however, Merrill Lynch may or may not have, from time to time, acted in a financial investment advisory capacity to the company or its affiliates.
 
(6)      The total non-voting common stock share figure above represents the maximum number of shares deliverable upon exchange of the aggregate principal amount at maturity of LYONs outstanding as of July 3, 2006. Accordingly, this figure represents the maximum number of shares of non-voting common stock that could be sold hereunder.
 

The Prospectus, together with all Prospectus Supplements, constitutes the Prospectus required to be delivered by Section 5(b) of the Securities Act of 1933, as amended, with respect to offers and sales of non-voting common stock deliverable upon exchange of the LYONs.

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