DREYFUS S&P 500 INDEX FUND, 497J, 1999-03-03

DREYFUS S&P 500 INDEX FUND
497J, 1999-03-03

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                                        March 3, 1999



Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C.  20549

     Re:  Dreyfus Index Funds, Inc. (the "Fund")
          Registration Statement File Nos. 33-31809; 811-5883

Ladies and Gentlemen:

     This filing is being made pursuant to Rule 497(j) under the Securities
Act of 1933, as amended (the "1933 Act"), for the purpose of informing the
SEC that there were no material or non-material changes since the
Registrant's Post-Effective Amendment No. 15, filed with the SEC on February
26, 1999.

     If you have any questions or comments on the attached, please do not
hesitate to contact the undersigned at (212) 922-6855.


                                        Very truly yours,



                                        Lisa R. Grosswirth




cc:  Stroock & Stroock & Lavan
     Ernst & Young
     Michael A. Rosenberg