Massachusetts                             35-2216382
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(State of Incorporation or Organization)     (I.R.S. Employer Identification
                                                             No.)
          The Eaton Vance Building
              255 state Street
             Boston, Massachusetts                            02109
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   (Address of Principal Executive Office)                   (Zip Code)

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), check the following box. [x]

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), check the following box. [ ]

Securities Act registration statement file number to which this form relates:
333-108010

Securities to be registered pursuant to Section 12(b) of the Act:

         Title of Each Class                Name of Each Exchange On Which
         To Be So Registered                Each Class Is To Be Registered
         -------------------                ------------------------------

Common Shares of Beneficial Interest,         The New York Stock Exchange
      $0.01 Par Value Per Share

Securities to be registered pursuant to Section 12(g) of the Act:

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 1: Description of Registrant's Securities to be Registered.

The description of the Registrant's securities to be registered is incorporated by reference to the description contained under the caption "Description of Capital Structure" in the Registrant's Registration Statement on Form N-2 (Nos. 333-108010 and 811-21411) as filed electronically with the Securities and Exchange Commission on August 15, 2003 (Accession No. 0000898432-03-000791) ("Registration Statement on Form N-2"), as the same may be amended.

Item 2: Exhibits.

(a) The following exhibits are being filed with the Commission:

1. Registrant's Registration Statement on Form N-2 is incorporated herein by reference.

2. Declaration of Trust of Registrant, which was filed electronically as exhibit (a) to the Registrant's Registration Statement on Form N-2, is incorporated herein by reference.

3. By-Laws of Registrant, which were filed electronically as exhibit (b) to the Registrant's Registration Statement on Form N-2, are incorporated herein by reference.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on behalf of the undersigned, thereto duly authorized, this 14th day of October 2003.

EATON VANCE SENIOR FLOATING-RATE FUND

By: /s/Thomas E. Faust Jr.
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    Name:   Thomas E. Faust Jr.
    Title:  President