<DOCUMENT>
<TYPE>8-A12B
<SEQUENCE>1
<FILENAME>evsnrfltgrate-8a.txt
<TEXT>

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 8-A


                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITES
                     PURSUANT TO SECTION 12(B) OR (G) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                      Eaton Vance SENIOR FLOATING-RATE Fund
                   ------------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)


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

                                      None
--------------------------------------------------------------------------------
                                (Title of Class)
<PAGE>

                 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.

                                       -2-
<PAGE>

                                    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.
                                              ----------------------
                                              Name:   Thomas E. Faust Jr.
                                              Title:  President

                                      -3-

</TEXT>
</DOCUMENT>
