As filed with the Securities and Exchange Commission on
February 19, 2016
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
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FORM N-1A
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REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	/ X /
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Pre-Effective Amendment No.	/ /
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Post-Effective Amendment No. 55	/ X /
and	----
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REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY	/ X /
ACT OF 1940	----
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Amendment No. 51	/ X /
(Check appropriate box or boxes)	----
PUTNAM MONEY MARKET FUND
Registration No. 2-55091
811-02608
(Exact name of registrant as specified in charter)
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	/ X /
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Pre-Effective Amendment No.	/ /
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Post-Effective Amendment No. 39	/ X /
and	----
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REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY	/ X /
ACT OF 1940	----
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Amendment No. 41	/ X /
(Check appropriate box or boxes)	----

PUTNAM TAX EXEMPT MONEY MARKET FUND
	Registration No. 33-15238
	811-05215
(Exact name of registrant as specified in charter)
One Post Office Square, Boston, Massachusetts 02109
(Address of principal executive offices)
Registrants' Telephone Number, including Area Code
(617) 292-1000
It is proposed that this filing will become effective (check appropriate box)
/ /	immediately upon filing pursuant to paragraph (b)
/X/	on January 30, 2016 pursuant to paragraph (b)
/ /	60 days after filing pursuant to paragraph (a) (1)
/ /	on (date) pursuant to paragraph (a) (1)
/ /	75 days after filing pursuant to paragraph (a) (2)
/ /	on (date) pursuant to paragraph (a) (2) of Rule 485.
If appropriate, check the following box:
/ /	this post-effective amendment designates a new effective date for a previously filed post-effective amendment.
ROBERT T. BURNS, Vice President
PUTNAM MONEY MARKET FUND
PUTNAM TAX EXEMPT MONEY MARKET FUND
One Post Office Square
Boston, Massachusetts 02109
(Name and address of agent for service)
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Copy to:
BRYAN CHEGWIDDEN, Esquire
	ROPES & GRAY LLP
	1211 Avenue of the Americas
	New York, New York 10036

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, each Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Boston, and The Commonwealth of Massachusetts, on the 19 ^th day of February, 2016.

PUTNAM MONEY MARKET FUND

PUTNAM TAX EXEMPT MONEY MARKET

FUND

By: /s/ Jonathan S. Horwitz,

Executive Vice President, Principal Executive

Officer and Compliance Liaison

Pursuant to the requirements of the Securities Act of 1933, as amended, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

Signature	Title
Jameson A. Baxter*	Chair, Board of Trustees
Robert L. Reynolds*	President and Trustee
Jonathan S. Horwitz*	Executive Vice President, Principal Executive
	Officer and Compliance Liaison
Steven D. Krichmar*	Vice President and Principal Financial Officer
Janet C. Smith*	Vice President, Principal Accounting Officer and
	Assistant Treasurer
Liaquat Ahamed*	Trustee
Ravi Akhoury*	Trustee
Barbara M. Baumann*	Trustee
Robert J. Darretta*	Trustee
Katinka Domotorffy*	Trustee
John A. Hill*	Trustee
Paul L. Joskow*	Trustee
Kenneth R. Leibler*	Trustee

Robert E. Patterson*	Trustee
George Putnam, III*	Trustee
W. Thomas Stephens*	Trustee

By:/s/ Jonathan S. Horwitz, as Attorney-in-Fact

February 19, 2016

*Signed pursuant to power of attorney filed in - Post-

Effective Amendment No. 48 to the Money Market

Fund’s Registration Statement and Post-Effective

Amendment No. 32 to the Tax Exempt Money

Market Fund’s Registration Statement on January 28,

2013.