Vanguard Bond Index Funds - Annual report of proxy voting record for management investment companies (N-PX)

 UNITED STATES
 SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM N-PX

 ANNUAL REPORT OF PROXY VOTING RECORD
 OF
 REGISTERED MANAGEMENT INVESTMENT COMPANIES


 INVESTMENT COMPANY ACT FILE NUMBER: 811-4681

 NAME OF REGISTRANT: VANGUARD BOND INDEX FUNDS

 ADDRESS OF REGISTRANT: PO BOX 2600, VALLEY FORGE, PA 19482

 NAME AND ADDRESS OF AGENT FOR SERVICE: HEIDI STAM
 PO BOX 876
 VALLEY FORGE, PA 19482

 REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: [phone]
 DATE OF FISCAL YEAR END: DECEMBER 31

 DATE OF REPORTING PERIOD: JULY 1, 2007 - JUNE 30, 2008

 FUND: VANGUARD INFLATION-PROTECTED SECURITIES FUND
 The fund held no securities entitled to vote at a meeting of shareholders during
 the reporting period.

----------------------------------------------------------------------------------------------
 SIGNATURES


 Pursuant to the requirements of the Investment Company Act of 1940, the registrant has duly
 caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



 VANGUARD BOND INDEX FUNDS

 By: /s/John J. Brennan
 (Heidi Stam)
 John J. Brennan*
 Chairman _Chief Executive Officer
 Date: August 27, 2008

 * By Power of Attorney. Filed on January 18, 2008, see File Number 2-29601.
 Incorporated by Reference.