Post-effective Amendment (investment Company, Rule 485(b)) (485bpos)

As filed with the Securities and Exchange Commission on May 9, 2013

Securities Act File No. 33-31205

Investment Company Act File No. 811-05904

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-lA

REGISTRATION STATEMENT

UNDER


*THE SECURITIES ACT OF 1933*		x
Pre-Effective Amendment No.		¨
Post-Effective Amendment No. 31		¨

and/or

REGISTRATION STATEMENT

UNDER


*THE INVESTMENT COMPANY ACT OF 1940*		x
Amendment No. 31		x

(Check appropriate box or boxes)

ELFUN MONEY MARKET FUND

(Exact Name of Registrant as Specified in Charter)

1600 Summer Street

Stamford, Connecticut 06905

(Address of Principal Executive Office) (Zip Code)

Registrant’s Telephone Number, including Area Code: (203) 326-4040

Matthew J. Simpson, Esq.

Executive Vice President, General Counsel & Secretary

c/o GE Asset Management Incorporated

1600 Summer Street

Stamford, Connecticut 06905

(Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering: As soon as practicable after the effective date of this Registration Statement.

It is proposed that this filing will become effective (check appropriate box):

Immediately upon Filing Pursuant to Paragraph (b) of Rule 485

on (date) Pursuant to Paragraph (b) of Rule 485

60 Days after Filing Pursuant to Paragraph (a)(1) of Rule 485

on (date) Pursuant to Paragraph (a)(1) of Rule 485

75 Days after Filing Pursuant to Paragraph (a)(2) of Rule 485

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.

Explanatory Note: This Post-Effective Amendment (“PEA”) No. 31 to the Trust’s Registration Statement on Form N-1A hereby incorporates Parts A, B and C from the Trust’s PEA No. 30 on Form N-1A filed April 26, 2013. This PEA No. 31 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in PEA No. 30 to the Trust’s Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended (the “Securities Act”), and the Investment Company Act of 1940, as amended, Registrant certifies that it meets all of the requirements for effectiveness of this Amendment to the Registration Statement pursuant to Rule 485(b) under the Securities Act, and has duly caused this Amendment to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Stamford, State of Connecticut on the 9th day of May, 2013.

By: /s/ DMITRI STOCKTON

Dmitri Stockton

Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Act, this Post-Effective Amendment to the Registrant’s Registration Statement on Form N-1A has been signed below by the following persons in the capacities and on the dates indicated.


Signature	Title	Date

/s/ DMITRI STOCKTON Dmitri Stockton	Chairman and Chief Executive Officer (Principal Executive Officer)	May 9, 2013

/s/ GEORGE A. BICHER George A. Bicher**	Trustee	May 9, 2013

/s/ PAUL M. COLONNA Paul M. Colonna*	Trustee	May 9, 2013

/s/ MICHAEL J. COSGROVE Michael J. Cosgrove*	Trustee	May 9, 2013

/s/ GREG HARTCH Greg Hartch***	Trustee	May 9, 2013

/s/ JESSICA L. HOLSCOTT Jessica L. Holscott****	Trustee	May 9, 2013

/s/ RALPH R. LAYMAN Ralph R. Layman*	Trustee	May 9, 2013

/s/ MATTHEW J. SIMPSON Matthew J. Simpson	Trustee and Secretary	May 9, 2013

/s/ DONALD W. TOREY Donald W. Torey*	Trustee	May 9, 2013

/s/ DAVID WIEDERECHT David Wiederecht*	Trustee	May 9, 2013

/s/ ARTHUR JENSEN Arthur Jensen	Treasurer (Principal Financial Officer)	May 9, 2013

/s/ MATTHEW J. SIMPSON

Matthew J. Simpson

*	Signature affixed by Matthew J. Simpson pursuant to a power of attorney dated April 14, 2008.

**	Signature affixed by Matthew J. Simpson pursuant to a power of attorney dated April 14, 2011.

***	Signature affixed by Matthew J. Simpson pursuant to a power of attorney dated April 17, 2012.

****	Signature affixed by Matthew J. Simpson pursuant to a power of attorney dated October 1, 2012.


Index No.		Description of Exhibit

EX-101.INS		XBRL Instance Document

EX-101.SCH		XBRL Taxonomy Extension Schema Document

EX-101.CAL		XBRL Taxonomy Extension Calculation Linkbase

EX-101.DEF		XBRL Taxonomy Extension Definition Linkbase

EX-101.LAB		XBRL Taxonomy Extension Labels Linkbase

EX-101.PRE		XBRL Taxonomy Extension Presentation Linkbase