Securities Act Registration No. 333-173080

Investment Company Act Registration No. 811-22538

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 3	x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 5 x

(Check appropriate box or boxes.)

Advisers Investment Trust

(Exact Name of Registrant as Specified in Charter)

4041 N. High Street, Suite 402

Columbus, OH 43214

(Address of Principal Executive Offices)(Zip Code)

Registrant’s Telephone Number, including Area Code: (614) 255-5550

Dina A. Tantra

4041 N. High Street, Suite 402

Columbus, OH 43214

With copy to:

Michael V. Wible

Thompson Hine LLP

41 South High Street, Suite 1700

Columbus, OH 43215-6101

Approximate date of proposed public offering:

It is proposed that this filing will become effective:

x Immediately upon filing pursuant to paragraph (b)

¨ On (date) 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.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment to its Registration Statement pursuant to Rule 485(b) of the Securities Act of 1933, as amended, and has duly caused this Post- Effective Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Columbus, State of Ohio, on the 17th day of January, 2013.

Advisers Investment Trust
By:	/s/ Dina A. Tantra
	Dina A. Tantra, President

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No.3 to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
/s/ Dina A. Tantra                         Dina A. Tantra	Trustee and President (Principal Executive Officer)	January 17. 2013
D’Ray R. Moore                          D’Ray R. Moore*	Trustee	January 17, 2013
Steven R. Sutermeister               Steven R. Sutermeister*	Trustee	January 17, 2013
Michael M. Van Buskirk           Michael M. Van Buskirk*	Trustee	January 17, 2013
/s/ Troy A. Sheets                        Troy Sheets	Treasurer (Principal Financial Officer)	January 17, 2013

By:	/s/ Dina A. Tantra
	Dina A. Tantra, as Attorney-in-Fact

* Pursuant to Power of Attorney

Exhibit Index

Exhibit No.	Description
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 Taxomony Extension Presentation Linkbase