UNITED STATES 

SECURITIES AND EXCHANGE COMMISSION 

Washington, DC 20549 

FORM N-PX 

ANNUAL REPORT OF PROXY VOTING RECORD OF 

REGISTERED MANAGEMENT INVESTMENT COMPANY 

Investment Company Act file number: 811- 08211 

Dreyfus Institutional Preferred Money Market Funds 

(Exact name of registrant as specified in charter) 

c/o The Dreyfus Corporation 

200 Park Avenue 

New York, New York 10166 

(Address of principal executive offices) (Zip code) 

Micahel A. Rosenberg, Esq. 

200 Park Avenue 

New York, New York 10166 

(Name and address of agent for service)

Registrant's telephone number, including area code: (212) 922-6000 

Date of fiscal year end: 3/31

Date of reporting period: July 1, 2007-June 30, 2008

Item 1. Proxy Voting Record

Dreyfus Institutional Preferred Money Market Funds
Dreyfus Institutional Preferred Money Market Fund
Dreyfus Institutional Preferred Plus Money Market Fund

The Registrant did not hold any voting securities and accordingly did not vote any proxies 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.

Dreyfus Institutional Preferred Money Market Funds

By:	/s/ J. David Officer
	J. David Officer
	President
Date:	July 24, 2008