485BPOS

Securities Act Registration No. 333-173080

Investment Company Act Registration No. 811-22538

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 12	x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 13 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 the requirements for effectiveness of this registration statement under Rule 485(b) under the Securities Act of 1933 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 10th day of October, 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 to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
Dina A. Tantra Dina A. Tantra	Trustee and President (Principal Executive Officer)	October 10, 2013
D’Ray Moore Rice D’Ray Moore Rice*	Trustee	October 10, 2013
Steven R. Sutermeister Steven R. Sutermeister*	Trustee	October 10, 2013
Michael M. Van Buskirk Michael M. Van Buskirk*	Trustee	October 10, 2013
Troy A. Sheets Troy A. Sheets	Treasurer (Principal Financial Officer)	October 10, 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

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Advisers Investment Trust
Prospectus Date	rr_ProspectusDate	Oct. 01, 2013
Document Creation Date	dei_DocumentCreationDate	Sep. 27, 2013

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Advisers Investment Trust
Prospectus Date	rr_ProspectusDate	Oct. 01, 2013
JOHCM International Select Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	FUND SUMMARY JOHCM International Select Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the JOHCM International Select Fund (the “Fund”) is to seek long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 28, 2016
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 50.69% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	50.69%
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	“Total Other Expenses” have been restated to reflect current fees.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests, under normal market conditions, primarily in equity securities of companies headquartered outside the United States, including those in emerging market countries. Shareholders will be given 60 days’ advance notice of any change to this policy. The Fund may invest in foreign companies of any size, including small and mid-capitalization companies, in order to achieve its objective. Equity securities include common and preferred stocks, rights and warrants. The Adviser seeks to identify and make investments in U.S. and foreign companies based on a multi-dimensional investment process, considering a number of factors, including growth, valuation, size, momentum and beta. Beta measures the volatility of a stock relative to the overall market. The Fund utilizes a core style with a modest growth tilt (growth at a reasonable price, or “GARP”) over all capitalization ranges. The Fund seeks those stocks, sectors and countries with positive earnings surprises, sustainably high or increasing return on equity, and attractive valuations.
Risk [Heading]	rr_RiskHeading	Principal Investment Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund. Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated. Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies. Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies. Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments. Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints. The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on global stocks.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could perform worse than other investments.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund commenced operations upon the reorganization of the JOHCM International Select Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund. The bar chart and performance table below provide an indication of the risks of an investment in the Fund (and the Predecessor Fund for periods prior to reorganization) by showing how the Fund’s performance has varied from year to year, and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance. Performance reflects contractual fee waivers in effect. If fee waivers were not in place, performance would be reduced. After-tax returns are shown for Class I only and will vary for Class II Shares. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”). Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available by calling 866-260-9549 (toll free) or 312-557-5913.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below provide an indication of the risks of an investment in the Fund (and the Predecessor Fund for periods prior to reorganization) by showing how the Fund’s performance has varied from year to year, and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	866-260-9549 (toll free) or 312-557-5913
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Annual Return – Class I for years ended December 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter:      9/30/10   20.80% Worst Quarter:      9/30/11   (21.00)%
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns for the Periods Ended December 31, 2012
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I only and will vary for Class II Shares.
JOHCM International Select Fund | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.89%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	none
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.36%
Total Other Expenses	rr_OtherExpensesOverAssets	0.36%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.25%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.20%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.05%
1 year	rr_ExpenseExampleYear01	107
3 years	rr_ExpenseExampleYear03	356
5 Years	rr_ExpenseExampleYear05	647
10 Years	rr_ExpenseExampleYear10	1,475
2010	rr_AnnualReturn2010	29.74%
2011	rr_AnnualReturn2011	(15.24%)
2012	rr_AnnualReturn2012	15.48%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2010
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	20.80%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(21.00%)
1 Year	rr_AverageAnnualReturnYear01	15.48%
Since Inception	rr_AverageAnnualReturnSinceInception	9.50%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 29, 2009
JOHCM International Select Fund | Class II Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.89%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.25%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.36%
Total Other Expenses	rr_OtherExpensesOverAssets	0.61%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.50%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.20%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.30%
1 year	rr_ExpenseExampleYear01	132
3 years	rr_ExpenseExampleYear03	434
5 Years	rr_ExpenseExampleYear05	780
10 Years	rr_ExpenseExampleYear10	$ 1,755
1 Year	rr_AverageAnnualReturnYear01	15.15%
Since Inception	rr_AverageAnnualReturnSinceInception	7.49%
Inception Date	rr_AverageAnnualReturnInceptionDate	Mar. 31, 2010
JOHCM International Select Fund | After Taxes on Distributions | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	15.46%
Since Inception	rr_AverageAnnualReturnSinceInception	9.46%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 29, 2009
JOHCM International Select Fund | After Taxes on Distributions and Sale of Fund Shares | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.28%
Since Inception	rr_AverageAnnualReturnSinceInception	8.27%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 29, 2009
JOHCM International Select Fund | Morgan Stanley Capital International EAFE Index (reflects no deductions for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	17.90%
Since Inception	rr_AverageAnnualReturnSinceInception	7.32%	[3]
Inception Date	rr_AverageAnnualReturnInceptionDate	Mar. 31, 2010

[1] "Total Other Expenses" have been restated to reflect current fees.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation, and indemnification expenses) exceed 1.05% and 1.30% for Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation, and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses maybe terminated at any time by the Board of Trustees and will terminate automatically upon termination of the Investment Management Agreement.

[3] While Class I Shares of the JOHCM International Select Fund commenced operations on July 29, 2009, Class I Shares began investing consistent with its investment objective on July 30, 2009. Class II Shares commenced operations on March 31, 2010. The average annual total returns for the Morgan Stanley Capital International EAFE Index (reflecting no deductions for fees, expenses or taxes) since March 31, 2010 is 4.05%.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Advisers Investment Trust
Prospectus Date	rr_ProspectusDate	Oct. 01, 2013
JOHCM Emerging Markets Opportunities Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	FUND SUMMARY JOHCM Emerging Markets Opportunities Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the JOHCM Emerging Markets Opportunities Fund (the “Fund”) is to seek long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 28, 2016
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Total Other Expenses” are estimated for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests, under normal conditions, at least 80% of its assets in equity securities of companies listed in, or whose principal business activities are located in, emerging markets. Shareholders will be given 60 days’ advance notice of any change to this policy. Equity securities include common and preferred stocks, rights and warrants. Emerging market countries are those countries included in the MSCI Emerging Markets Index and MSCI Frontier Markets Index, countries with low to middle-income economies according to the International Bank for Reconstruction and Development (more commonly referred to as the World Bank) and other countries with similar emerging market characteristics. The Fund may invest in emerging market companies of any size, including small and mid-capitalization companies in order to achieve its objective. The Fund may also invest up to 5% of its assets in frontier markets, which are generally smaller, less liquid and less developed than emerging markets. In addition, the Fund may invest in participatory notes. Participatory notes (commonly known as “P-notes”) are instruments issued by registered foreign institutional investors, usually non-U.S. based foreign brokers and domestic institutional brokers, to overseas investors who wish to invest in the Indian stock market without themselves registering with the Securities and Exchange Board of India. The Fund’s investment style can be considered as growth at a reasonable price (GARP). GARP investment strategy is a blend of growth and value investing and seeks to find companies that have strong earnings growth at a good price. The Fund employs a combination of top-down and bottom-up research to assess potential investments in the Fund. The Adviser seeks to invest in companies that possess attractive fundamentals (for example, a company’s revenues, earnings or management) and fit with the Adviser’s top-down country views within the emerging markets.
Risk [Heading]	rr_RiskHeading	Principal Investment Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund. Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated. Equity Securities Risk. Since it primarily purchases equity securities, the Fund is subject to the risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies. Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies. Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments. Frontier countries generally have smaller economies or less developed capital markets than traditional emerging market countries and, as a result, the risks of investing in emerging market countries are magnified in frontier countries. Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints. Geographic Concentration Risk. The risk that events negatively affecting the fiscal stability of a particular country or region in which the Fund focuses its investments will cause the value of the Fund’s shares to decrease, perhaps significantly. To the extent the Fund concentrates its assets in a particular country or region, the Fund is more vulnerable to financial, economic or other political developments in that country or region as compared to a fund that does not concentrate holdings in a particular country or region. Participatory Notes Risk. P-notes, in which the Fund may invest, represent interest in securities listed on certain foreign exchanges, and thus present similar risks to investing directly in such securities. P-notes also expose investors to counterparty risk, which is risk that the entity issuing the note may not be able to honor its financial commitments. The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on emerging market stocks.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could perform worse than other investments.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund commenced operations upon the reorganization of the JOHCM Emerging Markets Opportunities Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund. Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International Emerging Markets NR Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	866-260-9549 (toll free) or 312-557-5913
JOHCM Emerging Markets Opportunities Fund | Institutional Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	none
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.67%
Total Other Expenses	rr_OtherExpensesOverAssets	0.67%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.72%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.43%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.29%
1 year	rr_ExpenseExampleYear01	131
3 years	rr_ExpenseExampleYear03	456
JOHCM Emerging Markets Opportunities Fund | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.10%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.67%
Total Other Expenses	rr_OtherExpensesOverAssets	0.77%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.82%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.43%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.39%
1 year	rr_ExpenseExampleYear01	142
3 years	rr_ExpenseExampleYear03	487
JOHCM Emerging Markets Opportunities Fund | Class II Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.25%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.67%
Total Other Expenses	rr_OtherExpensesOverAssets	0.92%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.97%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.43%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.54%
1 year	rr_ExpenseExampleYear01	157
3 years	rr_ExpenseExampleYear03	$ 533

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.29%, 1.39% and 1.54% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Advisers Investment Trust
Prospectus Date	rr_ProspectusDate	Oct. 01, 2013
JOHCM Global Equity Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	FUND SUMMARY JOHCM Global Equity Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the JOHCM Global Equity Fund (the “Fund”) is to seek long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 28, 2016
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Total Other Expenses” are estimated for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests, under normal circumstances, at least 80% of its assets in equity securities of U.S. and foreign companies. Shareholders will be given 60 days’ advance notice of any change to this policy. Equity securities consist of common and preferred stock, rights and warrants. The Fund can invest without limit in foreign securities and can invest in any country, including countries with developing or emerging markets. The Fund normally will invest in at least three countries (one of which may be the United States) with at least 40% of its assets invested in countries other than the U.S. However, the Fund may invest at least 30% of its assets outside the U.S. when market conditions are unfavorable. Typically, the Fund invests in a number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. The Fund may invest in U.S and foreign companies of any size, including small and mid-capitalization companies. The Adviser seeks to identify and make investments in U.S. and foreign companies based on a multi-dimensional investment process, considering a number of factors, including growth, valuation, size, momentum and beta. Beta measures the volatility of a stock relative to the overall market. The Fund utilizes a core style with a modest growth tilt (growth at a reasonable price, or “GARP”) over all capitalization ranges. The Fund seeks those stocks, sectors and countries with positive earnings surprises, sustainably high or increasing return on equity, and attractive valuations.
Risk [Heading]	rr_RiskHeading	Principal Investment Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund. Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated. Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies. Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies. Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments. Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints. The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on global stocks.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could perform worse than other investments.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund commenced operations upon the reorganization of the JOHCM Global Equity Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund. Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International ACWI Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	866-260-9549 (toll free) or 312-557-5913
JOHCM Global Equity Fund | Institutional Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.95%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	none
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.45%
Total Other Expenses	rr_OtherExpensesOverAssets	0.45%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.40%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.08%
1 year	rr_ExpenseExampleYear01	110
3 years	rr_ExpenseExampleYear03	378
JOHCM Global Equity Fund | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.95%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.10%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.45%
Total Other Expenses	rr_OtherExpensesOverAssets	0.55%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.50%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.18%
1 year	rr_ExpenseExampleYear01	120
3 years	rr_ExpenseExampleYear03	410
JOHCM Global Equity Fund | Class II Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.95%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.25%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	0.45%
Total Other Expenses	rr_OtherExpensesOverAssets	0.70%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.65%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.33%
1 year	rr_ExpenseExampleYear01	135
3 years	rr_ExpenseExampleYear03	$ 456

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.08%, 1.18% and 1.33% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

XML

JOHCM Emerging Markets Opportunities Fund

FUND SUMMARY
JOHCM Emerging Markets Opportunities Fund

Investment Objective

The investment objective of the JOHCM Emerging Markets Opportunities Fund (the “Fund”) is to seek long-term capital appreciation.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (Fees paid directly from your investment)

Shareholder Fees JOHCM Emerging Markets Opportunities Fund (USD $)	Institutional Shares	Class I Shares	Class II Shares
Shareholder Fees (Fees paid directly from your investment)	none	none	none
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	none	none	none
Redemption Fee	none	none	none

Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses JOHCM Emerging Markets Opportunities Fund		Institutional Shares	Class I Shares	Class II Shares
Management Fee		1.05%	1.05%	1.05%
Shareholder Servicing Fee		none	0.10%	0.25%
Administration, Accounting, Custody and Other Fees		0.67%	0.67%	0.67%
Total Other Expenses	[1]	0.67%	0.77%	0.92%
Total Annual Fund Operating Expenses		1.72%	1.82%	1.97%
Fee Waivers and Reimbursements	[2]	(0.43%)	(0.43%)	(0.43%)
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements		1.29%	1.39%	1.54%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:

Expense Example JOHCM Emerging Markets Opportunities Fund (USD $)	1 year	3 years
Institutional Shares	131	456
Class I Shares	142	487
Class II Shares	157	533

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.

Principal Investment Strategy

The Fund invests, under normal conditions, at least 80% of its assets in equity securities of companies listed in, or whose principal business activities are located in, emerging markets. Shareholders will be given 60 days’ advance notice of any change to this policy. Equity securities include common and preferred stocks, rights and warrants. Emerging market countries are those countries included in the MSCI Emerging Markets Index and MSCI Frontier Markets Index, countries with low to middle-income economies according to the International Bank for Reconstruction and Development (more commonly referred to as the World Bank) and other countries with similar emerging market characteristics. The Fund may invest in emerging market companies of any size, including small and mid-capitalization companies in order to achieve its objective.

The Fund may also invest up to 5% of its assets in frontier markets, which are generally smaller, less liquid and less developed than emerging markets. In addition, the Fund may invest in participatory notes. Participatory notes (commonly known as “P-notes”) are instruments issued by registered foreign institutional investors, usually non-U.S. based foreign brokers and domestic institutional brokers, to overseas investors who wish to invest in the Indian stock market without themselves registering with the Securities and Exchange Board of India.

The Fund’s investment style can be considered as growth at a reasonable price (GARP). GARP investment strategy is a blend of growth and value investing and seeks to find companies that have strong earnings growth at a good price. The Fund employs a combination of top-down and bottom-up research to assess potential investments in the Fund. The Adviser seeks to invest in companies that possess attractive fundamentals (for example, a company’s revenues, earnings or management) and fit with the Adviser’s top-down country views within the emerging markets.

Principal Investment Risks

All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund.

Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated.

Equity Securities Risk. Since it primarily purchases equity securities, the Fund is subject to the risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies.

Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies.

Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments. Frontier countries generally have smaller economies or less developed capital markets than traditional emerging market countries and, as a result, the risks of investing in emerging market countries are magnified in frontier countries.

Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints.

Geographic Concentration Risk. The risk that events negatively affecting the fiscal stability of a particular country or region in which the Fund focuses its investments will cause the value of the Fund’s shares to decrease, perhaps significantly. To the extent the Fund concentrates its assets in a particular country or region, the Fund is more vulnerable to financial, economic or other political developments in that country or region as compared to a fund that does not concentrate holdings in a particular country or region.

Participatory Notes Risk. P-notes, in which the Fund may invest, represent interest in securities listed on certain foreign exchanges, and thus present similar risks to investing directly in such securities. P-notes also expose investors to counterparty risk, which is risk that the entity issuing the note may not be able to honor its financial commitments.

The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on emerging market stocks.

Performance Information

The Fund commenced operations upon the reorganization of the JOHCM Emerging Markets Opportunities Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund. Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International Emerging Markets NR Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.29%, 1.39% and 1.54% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Advisers Investment Trust
Prospectus Date	rr_ProspectusDate	Oct. 01, 2013
JOHCM International Small Cap Equity Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	FUND SUMMARY JOHCM International Small Cap Equity Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the JOHCM International Small Cap Equity Fund is to seek long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	January 28, 2016
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Total Other Expenses” are estimated for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its assets in equity securities such as common stocks, preferred stock, rights and warrants issued by small companies that are based outside the United States, including companies in emerging and frontier as well as in developed markets. Shareholders will be given 60 days’ advance notice of any change to this policy. The Fund may invest in securities convertible into such securities (including Depositary Receipts), and investment companies that invest in the types of securities in which the Fund would normally invest. The Fund may also invest up to 20% of the value of its assets in fixed income securities. Under normal circumstances, the Fund will hold 70-80 investments across 12 countries. Small cap companies are defined as companies with market capitalizations at the time of purchase below $2 billion or in the range of those market capitalizations of companies included in the MSCI Small Cap Index at the time of purchase. The capitalization range of the MSCI Small Cap Index is between $25.2 million and $8 billion as of September 16, 2013. The size of the companies included in the MSCI Small Cap Index will change with market conditions. Factors bearing on whether a company is considered to be “based” outside the United States may include: (1) it is legally domiciled outside the United States; (2) it conducts at least 50% of its business, as measured by the location of its sales, earnings, assets, or production, outside the United States; or (3) it has the principal exchange listing for its securities outside the United States. The Fund also may invest in securities of small U.S. companies that derive, or are expected to derive, a significant portion of their revenues from their foreign operations, although under normal circumstances not more than 15% of the Fund’s total assets will be invested in securities of U.S. companies. If the Fund continues to hold securities of small companies whose market capitalization, subsequent to purchase, grows to exceed US$2 billion, it may continue to treat them as small companies for the purposes of the 80% requirement. However, the Fund will generally initiate the sale of securities whose market capitalization grows to exceed US$3 billion.
Risk [Heading]	rr_RiskHeading	Principal Investment Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund. Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated. Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies. Small Cap Company Risk. The small capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small cap companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small cap stocks may be more volatile than those of larger companies. Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks which are in addition to the usual risks inherent in foreign investments. Frontier countries generally have smaller economies or less developed capital markets than traditional emerging market countries and, as a result, the risks of investing in emerging market countries are magnified in frontier countries. Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints. Fixed Income Risk. Fixed income securities will increase or decrease in value based on changes in interest rates. If rates increase, the value of the Fund’s fixed income securities generally declines. On the other hand, if rates fall, the value of the fixed income securities generally increases. Your investment will decline in value if the value of the Fund’s investments decreases. Convertible Securities Risk. The market value of convertible securities and other debt securities tends to fall when prevailing interest rates rise. The value of convertible securities also tends to change whenever the market value of the underlying common or preferred stock fluctuates. Investment Company Risk. If the Fund invests in shares of another investment company, shareholders will indirectly bear fees and expenses charged by the underlying investment companies in which the Fund invests in addition to the Fund’s direct fees and expenses. The Fund also will incur brokerage costs when it purchases exchange traded funds and closed-end funds. Furthermore, investments in other funds could affect the timing, amount and character of distributions to shareholders and therefore may increase the amount of taxes payable by investors in the Fund. The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on international small capitalization stocks.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund, or the Fund could perform worse than other investments.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	Because the Fund has not commenced operations and does not have returns for a calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International ACWI ex-USA Small Cap Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	Because the Fund has not commenced operations and does not have returns for a calendar year, no investment return information is presented for the Fund at this time.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	866-260-9549 (toll free) or 312-557-5913
JOHCM International Small Cap Equity Fund | Institutional Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	none
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	1.92%
Total Other Expenses	rr_OtherExpensesOverAssets	1.92%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.97%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(1.73%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.24%
1 year	rr_ExpenseExampleYear01	126
3 years	rr_ExpenseExampleYear03	580
JOHCM International Small Cap Equity Fund | Class I Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.10%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	1.92%
Total Other Expenses	rr_OtherExpensesOverAssets	2.02%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	3.07%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(1.73%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.34%
1 year	rr_ExpenseExampleYear01	136
3 years	rr_ExpenseExampleYear03	611
JOHCM International Small Cap Equity Fund | Class II Shares
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	rr_MaximumDeferredSalesChargeOverOther	none
Redemption Fee	rr_RedemptionFeeOverRedemption	none
Shareholder Fees (Fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	1.05%
Shareholder Servicing Fee	rr_Component1OtherExpensesOverAssets	0.25%
Administration, Accounting, Custody and Other Fees	rr_Component2OtherExpensesOverAssets	1.92%
Total Other Expenses	rr_OtherExpensesOverAssets	2.17%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	3.22%
Fee Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(1.73%)	[2]
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements	rr_NetExpensesOverAssets	1.49%
1 year	rr_ExpenseExampleYear01	152
3 years	rr_ExpenseExampleYear03	$ 657

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.24%, 1.34% and 1.49% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

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JOHCM International Select Fund

FUND SUMMARY
JOHCM International Select Fund

Investment Objective

The investment objective of the JOHCM International Select Fund (the “Fund”) is to seek long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (Fees paid directly from your investment)

Shareholder Fees JOHCM International Select Fund (USD $)	Class I Shares	Class II Shares
Shareholder Fees (Fees paid directly from your investment)	none	none
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	none	none
Redemption Fee	none	none

Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses JOHCM International Select Fund		Class I Shares	Class II Shares
Management Fee		0.89%	0.89%
Shareholder Servicing Fee		none	0.25%
Administration, Accounting, Custody and Other Fees		0.36%	0.36%
Total Other Expenses	[1]	0.36%	0.61%
Total Annual Fund Operating Expenses		1.25%	1.50%
Fee Waivers and Reimbursements	[2]	(0.20%)	(0.20%)
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements		1.05%	1.30%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:

Expense Example JOHCM International Select Fund (USD $)	1 year	3 years	5 Years	10 Years
Class I Shares	107	356	647	1,475
Class II Shares	132	434	780	1,755

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 50.69% of the average value of its portfolio.

Principal Investment Strategy

The Fund invests, under normal market conditions, primarily in equity securities of companies headquartered outside the United States, including those in emerging market countries. Shareholders will be given 60 days’ advance notice of any change to this policy. The Fund may invest in foreign companies of any size, including small and mid-capitalization companies, in order to achieve its objective. Equity securities include common and preferred stocks, rights and warrants.

The Adviser seeks to identify and make investments in U.S. and foreign companies based on a multi-dimensional investment process, considering a number of factors, including growth, valuation, size, momentum and beta. Beta measures the volatility of a stock relative to the overall market. The Fund utilizes a core style with a modest growth tilt (growth at a reasonable price, or “GARP”) over all capitalization ranges. The Fund seeks those stocks, sectors and countries with positive earnings surprises, sustainably high or increasing return on equity, and attractive valuations.

Principal Investment Risks

All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund.

Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated.

Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies.

Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies.

Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments.

Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints.

The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on global stocks.

Performance Information

The Fund commenced operations upon the reorganization of the JOHCM International Select Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund.

The bar chart and performance table below provide an indication of the risks of an investment in the Fund (and the Predecessor Fund for periods prior to reorganization) by showing how the Fund’s performance has varied from year to year, and by showing how the Fund’s average annual returns compare with those of a broad measure of market performance. Performance reflects contractual fee waivers in effect. If fee waivers were not in place, performance would be reduced. After-tax returns are shown for Class I only and will vary for Class II Shares. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”). Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available by calling 866-260-9549 (toll free) or 312-557-5913.

Annual Return – Class I for years ended December 31

Best Quarter:      9/30/10   20.80%
Worst Quarter:      9/30/11   (21.00)%

Average Annual Total Returns for the Periods Ended December 31, 2012

Average Annual Total Returns JOHCM International Select Fund	1 Year	Since Inception		Inception Date
Class I Shares	15.48%	9.50%		Jul. 29, 2009
Class I Shares After Taxes on Distributions	15.46%	9.46%		Jul. 29, 2009
Class I Shares After Taxes on Distributions and Sale of Fund Shares	10.28%	8.27%		Jul. 29, 2009
Class II	15.15%	7.49%		Mar. 31, 2010
Morgan Stanley Capital International EAFE Index (reflects no deductions for fees, expenses or taxes)	17.90%	7.32%	[1]	Mar. 31, 2010

[1] "Total Other Expenses" have been restated to reflect current fees.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation, and indemnification expenses) exceed 1.05% and 1.30% for Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation, and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses maybe terminated at any time by the Board of Trustees and will terminate automatically upon termination of the Investment Management Agreement.

[1] While Class I Shares of the JOHCM International Select Fund commenced operations on July 29, 2009, Class I Shares began investing consistent with its investment objective on July 30, 2009. Class II Shares commenced operations on March 31, 2010. The average annual total returns for the Morgan Stanley Capital International EAFE Index (reflecting no deductions for fees, expenses or taxes) since March 31, 2010 is 4.05%.

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JOHCM Global Equity Fund

FUND SUMMARY
JOHCM Global Equity Fund

Investment Objective

The investment objective of the JOHCM Global Equity Fund (the “Fund”) is to seek long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (Fees paid directly from your investment)

Shareholder Fees JOHCM Global Equity Fund (USD $)	Institutional Shares	Class I Shares	Class II Shares
Shareholder Fees (Fees paid directly from your investment)	none	none	none
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	none	none	none
Redemption Fee	none	none	none

Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses JOHCM Global Equity Fund		Institutional Shares	Class I Shares	Class II Shares
Management Fee		0.95%	0.95%	0.95%
Shareholder Servicing Fee		none	0.10%	0.25%
Administration, Accounting, Custody and Other Fees		0.45%	0.45%	0.45%
Total Other Expenses	[1]	0.45%	0.55%	0.70%
Total Annual Fund Operating Expenses		1.40%	1.50%	1.65%
Fee Waivers and Reimbursements	[2]	(0.32%)	(0.32%)	(0.32%)
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements		1.08%	1.18%	1.33%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:

Expense Example JOHCM Global Equity Fund (USD $)	1 year	3 years
Institutional Shares	110	378
Class I Shares	120	410
Class II Shares	135	456

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.

Principal Investment Strategy

The Fund invests, under normal circumstances, at least 80% of its assets in equity securities of U.S. and foreign companies. Shareholders will be given 60 days’ advance notice of any change to this policy. Equity securities consist of common and preferred stock, rights and warrants. The Fund can invest without limit in foreign securities and can invest in any country, including countries with developing or emerging markets. The Fund normally will invest in at least three countries (one of which may be the United States) with at least 40% of its assets invested in countries other than the U.S. However, the Fund may invest at least 30% of its assets outside the U.S. when market conditions are unfavorable. Typically, the Fund invests in a number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. The Fund may invest in U.S and foreign companies of any size, including small and mid-capitalization companies.

The Adviser seeks to identify and make investments in U.S. and foreign companies based on a multi-dimensional investment process, considering a number of factors, including growth, valuation, size, momentum and beta. Beta measures the volatility of a stock relative to the overall market. The Fund utilizes a core style with a modest growth tilt (growth at a reasonable price, or “GARP”) over all capitalization ranges. The Fund seeks those stocks, sectors and countries with positive earnings surprises, sustainably high or increasing return on equity, and attractive valuations.

Principal Investment Risks

All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund.

Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated.

Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies.

Small-Cap and Mid-Cap Company Risk. The small and mid-capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, these small and mid-capitalization companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small and mid-capitalization stocks may be more volatile than those of larger companies.

Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks inherent in foreign investments.

Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints.

The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on global stocks.

Performance Information

The Fund commenced operations upon the reorganization of the JOHCM Global Equity Fund, a series of the DundeeWealth Funds (the “Predecessor Fund”), into the Fund. With the reorganization, the Fund assumed the financial and performance history of the Predecessor Fund. Because the Predecessor Fund does not have returns for a full calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International ACWI Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.08%, 1.18% and 1.33% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

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JOHCM International Small Cap Equity Fund

FUND SUMMARY
JOHCM International Small Cap Equity Fund

Investment Objective

The investment objective of the JOHCM International Small Cap Equity Fund is to seek long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees (Fees paid directly from your investment)

Shareholder Fees JOHCM International Small Cap Equity Fund (USD $)	Institutional Shares	Class I Shares	Class II Shares
Shareholder Fees (Fees paid directly from your investment)	none	none	none
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none	none
Maximum Deferred Sales Charge (Load) Imposed on Purchases (as a percentage of net asset value)	none	none	none
Redemption Fee	none	none	none

Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses JOHCM International Small Cap Equity Fund		Institutional Shares	Class I Shares	Class II Shares
Management Fee		1.05%	1.05%	1.05%
Shareholder Servicing Fee		none	0.10%	0.25%
Administration, Accounting, Custody and Other Fees		1.92%	1.92%	1.92%
Total Other Expenses	[1]	1.92%	2.02%	2.17%
Total Annual Fund Operating Expenses		2.97%	3.07%	3.22%
Fee Waivers and Reimbursements	[2]	(1.73%)	(1.73%)	(1.73%)
Total Annual Fund Operating Expenses After Fee Waivers and Reimbursements		1.24%	1.34%	1.49%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and that you sell your shares at the end of those periods. The example also assumes that each year your investment has a 5% return and Fund operating expenses remain the same. Although your actual costs and returns might be different, your approximate costs of investing $10,000 in the Fund would be:

Expense Example JOHCM International Small Cap Equity Fund (USD $)	1 year	3 years
Institutional Shares	126	580
Class I Shares	136	611
Class II Shares	152	657

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.

Principal Investment Strategy

The Fund invests at least 80% of its assets in equity securities such as common stocks, preferred stock, rights and warrants issued by small companies that are based outside the United States, including companies in emerging and frontier as well as in developed markets. Shareholders will be given 60 days’ advance notice of any change to this policy. The Fund may invest in securities convertible into such securities (including Depositary Receipts), and investment companies that invest in the types of securities in which the Fund would normally invest. The Fund may also invest up to 20% of the value of its assets in fixed income securities. Under normal circumstances, the Fund will hold 70-80 investments across 12 countries.

Small cap companies are defined as companies with market capitalizations at the time of purchase below $2 billion or in the range of those market capitalizations of companies included in the MSCI Small Cap Index at the time of purchase. The capitalization range of the MSCI Small Cap Index is between $25.2 million and $8 billion as of September 16, 2013. The size of the companies included in the MSCI Small Cap Index will change with market conditions. Factors bearing on whether a company is considered to be “based” outside the United States may include: (1) it is legally domiciled outside the United States; (2) it conducts at least 50% of its business, as measured by the location of its sales, earnings, assets, or production, outside the United States; or (3) it has the principal exchange listing for its securities outside the United States.

The Fund also may invest in securities of small U.S. companies that derive, or are expected to derive, a significant portion of their revenues from their foreign operations, although under normal circumstances not more than 15% of the Fund’s total assets will be invested in securities of U.S. companies. If the Fund continues to hold securities of small companies whose market capitalization, subsequent to purchase, grows to exceed US$2 billion, it may continue to treat them as small companies for the purposes of the 80% requirement. However, the Fund will generally initiate the sale of securities whose market capitalization grows to exceed US$3 billion.

Principal Investment Risks

All investments carry a certain amount of risk, and the Fund cannot guarantee that it will achieve its investment objective. The value of the Fund’s investments will fluctuate with market conditions, and the value of your investment in the Fund also will vary. You could lose money on your investment in the Fund, or the Fund could perform worse than other investments. Investments in the Fund are not deposits of a bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any other government agency. Below are the main risks of investing in the Fund.

Management Risk. The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the Fund invests may prove to be incorrect, and there is no guarantee that individual securities will perform as anticipated.

Equity Securities Risk. The risk that events negatively affecting issuers, industries or financial markets in which the Fund invests will impact the value of the stocks held by the Fund and thus, the value of the Fund’s shares over short or extended periods. Price volatility is the principal risk of investing in the Fund. Investments in small capitalization or in mid-capitalization companies may be more volatile than investments in larger companies.

Small Cap Company Risk. The small capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small cap companies may have limited product lines, markets and financial resources, and may depend upon relatively small management groups. Therefore, small cap stocks may be more volatile than those of larger companies.

Foreign & Emerging Markets Risk. Investing in foreign securities poses additional market risks since political and economic events unique in a country or region will affect those markets and their issuers and may not affect the U.S. economy or U.S. issuers. Investing in emerging market securities magnifies the risks which are in addition to the usual risks inherent in foreign investments. Frontier countries generally have smaller economies or less developed capital markets than traditional emerging market countries and, as a result, the risks of investing in emerging market countries are magnified in frontier countries.

Currency Risk. Investments in foreign countries are also subject to currency risk. As the Fund’s investments in foreign securities are generally denominated in foreign currencies, changes in the value of those currencies compared to the U.S. dollar may affect the value of the Fund’s investments. Some of the currencies in emerging markets have experienced devaluations relative to the U.S. dollar, and major adjustments have been made periodically in certain such currencies. Certain developing countries face serious exchange constraints.

Fixed Income Risk. Fixed income securities will increase or decrease in value based on changes in interest rates. If rates increase, the value of the Fund’s fixed income securities generally declines. On the other hand, if rates fall, the value of the fixed income securities generally increases. Your investment will decline in value if the value of the Fund’s investments decreases.

Convertible Securities Risk. The market value of convertible securities and other debt securities tends to fall when prevailing interest rates rise. The value of convertible securities also tends to change whenever the market value of the underlying common or preferred stock fluctuates.

Investment Company Risk. If the Fund invests in shares of another investment company, shareholders will indirectly bear fees and expenses charged by the underlying investment companies in which the Fund invests in addition to the Fund’s direct fees and expenses. The Fund also will incur brokerage costs when it purchases exchange traded funds and closed-end funds. Furthermore, investments in other funds could affect the timing, amount and character of distributions to shareholders and therefore may increase the amount of taxes payable by investors in the Fund.

The Fund should only be purchased by investors seeking long-term growth of capital who can withstand the share price volatility of equity investing with a focus on international small capitalization stocks.

Performance Information

Because the Fund has not commenced operations and does not have returns for a calendar year, no investment return information is presented for the Fund at this time. In the future, investment return information will be presented in this section of the prospectus. The information will give some indication of the risks of investing in the Fund by comparing the Fund’s investment returns with a broad measure of market performance. The Fund intends to compare its performance to the Morgan Stanley Capital International ACWI ex-USA Small Cap Index. Also, shareholder reports containing financial and investment return information will be provided to shareholders semi-annually. Updated performance information is available at no cost by calling 866-260-9549 (toll free) or 312-557-5913.

[1] "Total Other Expenses" are estimated for the current fiscal year.

[2] JO Hambro Capital Management Limited (the "Adviser") has contractually agreed to waive fees and reimburse expenses to the extent that Total Annual Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) exceed 1.24%, 1.34% and 1.49% for Institutional Shares, Class I Shares and Class II Shares, respectively, until January 28, 2016. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed three years from the date on which the waiver or reimbursement was made to the extent that such a recapture does not cause the Total Annual Fund Operating Expenses (excluding taxes, extraordinary expenses, expenses associated with investments in underlying investment companies, brokerage commissions, interest, dividends, litigation and indemnification expenses) to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement. The agreement to waive fees and reimburse expenses may be terminated by the Board of Trustees at any time and will terminate automatically upon termination of the Investment Management Agreement.

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Document and Entity Information	12 Months Ended
	Oct. 01, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Sep. 27, 2013
Registrant Name	Advisers Investment Trust
Central Index Key	0001516523
Amendment Flag	false
Document Creation Date	Sep. 27, 2013
Document Effective Date	Oct. 01, 2013
Prospectus Date	Oct. 01, 2013