EATON VANCE INSTITUTIONAL SENIOR-FLOATING RATE FUND
255 State Street
Boston, MA 02109
Telephone: (617) 482-8260
Telecopy: (617) 338-8054
CERTIFICATION
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and
Regulation S-T, Eaton Vance Institutional Senior Floating-Rate Fund (the
"Registrant") (1933 Act File No. 333-32264) certifies (a) that the forms of
prospectus and statement of additional information dated March 15, 2000 do not
differ materially from those contained in the Registration Statement on Form
N-2, and (b) that the Registration Statement was filed electronically with the
Commission (Accession No. 0000950156-00-000170) on March 13, 2000.
Eaton Vance Institutional Senior Floating-Rate Fund
By: /s/ Eric G. Woodbury
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Eric G. Woodbury, Esq.
Assistant Secretary
Date: March 16, 2000
