September 30, 2011

 

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC  20549

 

RE:  VANGUARD INDEX FUNDS (THE TRUST)

     FILE NO. 2-56846

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Ladies and Gentlemen:

 

Transmitted herewith pursuant to Rule 497(j) under the Securities Act of 1933 is certification that the Prospectus and Statement of Additional Information with respect to the above-referenced Trust do not differ from that filed in the most recent post-effective amendment, which was filed electronically.

 

Sincerely,

Lisa L.B. Matson, Esq.

The Vanguard Group, Inc.