485BPOS

As filed with the Securities and Exchange Commission on September 19, 2013

1933 Act File No. 033-11387

1940 Act File No. 811-04984

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933			[ X ]
	Pre-Effective Amendment No. ____	[     ]
	Post-Effective Amendment No. 165	[ X ]
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940			[ X ]
	Amendment No. 164	[ X ]
(Check appropriate box or boxes.)

AMERICAN BEACON FUNDS

(Exact Name of Registrant as Specified in Charter)

4151 Amon Carter Boulevard, MD 2450

Fort Worth, Texas 76155

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, including Area Code: (817) 391-6100

Gene L. Needles, Jr., President 4151 Amon Carter Boulevard MD 2450 Fort Worth, Texas 76155 (Name and Address of Agent for Service) With copies to: Kathy K. Ingber, Esq. K&L Gates LLP 1601 K Street, NW Washington, D.C. 20006-1600

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

[  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.

This amendment is being filed solely to submit exhibits containing risk/return summary information in interactive data format that is identical to the risk/return information contained in the Registrant’s Prospectus for the A Class, C Class, Y Class, Institutional Class, and Investor Class shares of the American Beacon Earnest Partners Emerging Markets Equity Fund, which was filed with the Securities and Exchange Commission in Post-Effective Amendment No. 164 to the Registrant’s registration statement on August 27, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended (“1933 Act”), and the Investment Company Act of 1940, as amended, the Registrant represents that this Amendment meets all the requirements for effectiveness pursuant to Rule 485(b) under the 1933 Act and has duly caused this Post-Effective Amendment No. 165 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Fort Worth and the State of Texas, on September 19, 2013.

AMERICAN BEACON FUNDS
By:	/s/ Gene L. Needles, Jr.
	Gene L. Needles, Jr.
	President

Pursuant to the requirements of the 1933 Act, this Post-Effective Amendment No. 165 Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
/s/ Gene L. Needles, Jr.	President (Principal Executive Officer)	September 19, 2013
Gene L. Needles, Jr.
/s/ Melinda G. Heika	Treasurer (Principal Financial Officer)	September 21, 2013
Melinda G. Heika
Gerard J. Arpey*	Trustee	September 19, 2013
Gerard J. Arpey
W. Humphrey Bogart*	Trustee	September 19, 2013
W. Humphrey Bogart
Brenda A. Cline*	Trustee	September 19, 2013
Brenda A. Cline
Eugene J. Duffy*	Trustee	September 19, 2013
Eugene J. Duffy
Thomas M. Dunning*	Trustee	September 19, 2013
Thomas M. Dunning
Alan D. Feld*	Trustee	September 19, 2013
Alan D. Feld
Richard A. Massman*	Chairman and Trustee	September 19, 2013
Richard A. Massman
Barbara J. McKenna*	Trustee	September 19, 2013
Barbara J. McKenna
R. Gerald Turner*	Trustee	September 19, 2013
R. Gerald Turner
Paul J. Zucconi*	Trustee	September 19, 2013
Paul J. Zucconi

*By /s/ Rosemary K. Behan

Rosemary K. Behan, Attorney-in-Fact

EXHIBIT INDEX

Type	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

POWER OF ATTORNEY

I, Gerard J. Arpey, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Gerard J. Arpey

Gerard J. Arpey, Trustee

POWER OF ATTORNEY

I, W. Humphrey Bogart, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ W. Humphrey Bogart

W. Humphrey Bogart, Trustee

POWER OF ATTORNEY

I, Brenda A. Cline, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Brenda A. Cline

Brenda A. Cline, Trustee

POWER OF ATTORNEY

I, Eugene J. Duffy, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Eugene J. Duffy

Eugene J. Duffy, Trustee

POWER OF ATTORNEY

I, Thomas M. Dunning, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Thomas M. Dunning

Thomas M. Dunning, Trustee

POWER OF ATTORNEY

I, Alan D. Feld, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Alan D. Feld

Alan D. Feld, Trustee

POWER OF ATTORNEY

I, Richard A. Massman, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Richard A. Massman

Richard A. Massman, Trustee

POWER OF ATTORNEY

I, Barbara J. McKenna, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Barbara J. McKenna

Barbara J. McKenna, Trustee

POWER OF ATTORNEY

I, R. Gerald Turner, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ R. Gerald Turner

R. Gerald Turner, Trustee

POWER OF ATTORNEY

I, Paul J. Zucconi, Trustee of the American Beacon Funds and the American Beacon Select Funds (collectively, the “Trusts”), hereby constitute and appoint Gene L. Needles, Jr., Rosemary K. Behan, and Melinda G. Heika, each of them with the power to act without any other and with full power of substitution, my true and lawful attorney with full power to sign for me in my capacity as Trustee for the Trusts any Registration Statement on Form N-1A under the Securities Act of 1933 and/or the Investment Company Act of 1940 and any amendments thereto of the Trusts and all instruments necessary or desirable in connection therewith, hereby ratifying and confirming my signature as it may be signed by said attorney to any and all amendments to said Registration Statements.

Pursuant to the requirements of the Securities Act of 1933, as amended, this instrument has been signed below by the following in my capacity and on the 9th day of August, 2012.

/s/ Paul J. Zucconi

Paul J. Zucconi, Trustee

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Entity Registrant Name	dei_EntityRegistrantName	AMERICAN BEACON FUNDS
Entity Central Index Key	dei_EntityCentralIndexKey	0000809593
Document Creation Date	dei_DocumentCreationDate	Aug. 27, 2013
Document Effective Date	dei_DocumentEffectiveDate	Aug. 28, 2013
Prospectus Date	rr_ProspectusDate	Aug. 28, 2013

XML

American Beacon Earnest Partners Emerging Markets Equity Fund

American Beacon Earnest Partners Emerging Markets Equity Fund^SM

Investment Objective

The Fund's investment objective is 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. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in the A Class shares of the American Beacon Funds. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page 14 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page 28 of the statement of additional information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees American Beacon Earnest Partners Emerging Markets Equity Fund	A Class		C Class	Y Class	Institutional Class	Investor Class
Maximum sales charge imposed on purchases (as a percentage of offering price)	5.75%		none	none	none	none
Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)	0.50%	[1]	1.00%	none	none	none
Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)	2.00%		2.00%	2.00%	2.00%	2.00%

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

Annual Fund Operating Expenses American Beacon Earnest Partners Emerging Markets Equity Fund		A Class	C Class	Y Class	Institutional Class	Investor Class
Management fees		0.75%	0.75%	0.75%	0.75%	0.75%
Distribution and/or service (12b-1) fees		0.25%	1.00%	none	none	none
Other expenses	[1]	1.55%	1.55%	1.40%	1.30%	1.67%
Acquired Fund Fees and Expenses		0.01%	0.01%	0.01%	0.01%	0.01%
Total annual fund operating expenses		2.56%	3.31%	2.16%	2.06%	2.43%
Expense Reduction and Reimbursement		0.70%	0.70%	0.70%	0.70%	0.69%
Total annual fund operating expenses after expense reduction and reimbursement	[2]	1.86%	2.61%	1.46%	1.36%	1.74%

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 then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 

Expense Example American Beacon Earnest Partners Emerging Markets Equity Fund (USD $)	1 year	3 years
A Class	753	1,263
C Class	364	954
Y Class	149	609
Institutional Class	138	578
Investor Class	177	692

Assuming no redemption of shares:

Expense Example No Redemption (USD $)	1 year	3 years
American Beacon Earnest Partners Emerging Markets Equity Fund C Class	264	954

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. The Fund's portfolio turnover rate for the Fund's last fiscal year is not provided because the Fund has not commenced operations prior to the date of this prospectus.

Principal Investment Strategies

Under normal circumstances, at least 80% of the Fund's net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of issuers economically tied to emerging market countries. A company is generally regarded as being economically tied to an emerging markets country if it:

·      is primarily listed on the trading market of an emerging market country;

·      is headquartered in an emerging market country; or

·      derives 50% or more of its revenues from, or has 50% or more of its assets in, an emerging market country.

An emerging market country is one that:

·      has an emerging stock market as defined by the International Finance Corporation;

·      has a low- to middle-income economy according to the World Bank;

·      is included in the IFC Investable Index or the Morgan Stanley Capital International Emerging Markets Index; or

·      has a per-capita gross national product of $10,000 or less.

The Fund's equity investments may include common stocks, preferred stocks, securities convertible into or exchangeable for common stocks, depositary receipts (collectively referred to as “stocks”), exchange-traded funds (“ETFs”), and real estate investments trusts (“REITs”). The Fund may invest in companies of all market capitalizations and convertible securities of any duration.

The Fund's sub-advisor, EARNEST Partners, LLC (“EARNEST Partners”), selects securities within the emerging markets category using a proprietary screening model and fundamental analysis. EARNEST Partners seeks to outperform the designated benchmark, while controlling volatility and underperformance risk. EARNEST Partners uses screens to attempt to identify the financial and market characteristics that were in place when an individual company produced superior performance. Characteristics include: valuation measures, market trends, operating trends, growth measures, and profitability measures. The investment team then focuses its fundamental analysis on companies it believes are in attractive industries, with developed strategies, talented management teams, sufficient funding, strong performance results, a competitive advantage, and a viable method of profit development. The decision to sell a security is typically made based upon the realization of EARNEST Partners' investment thesis, identification of another stock that it believes has superior return and risk characteristics, or deterioration in the company's prospects due to unsatisfactory business execution, changing market conditions, or other adverse effects.

The Fund may also invest cash balances in other investment companies, including money market funds and exchange-traded funds (“ETFs”), and may purchase and sell futures or forward contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs.

Principal Risks

There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund. The Fund is not designed for investors who need an assured level of income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund are:

Currency Risk

Foreign currencies may decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies.

Emerging Markets Risk

When investing in emerging markets, the risks of investing in foreign securities discussed below are heightened. Emerging markets have unique risks that are greater than or in addition to investing in developed markets because emerging markets are generally smaller, less developed, less liquid and more volatile than the securities markets of the U.S. and other developed markets. There are also risks of: greater political uncertainties; an economy's dependence on revenues from particular commodities or on international aid or development assistance; currency transfer restrictions; a limited number of potential buyers for such securities; and delays and disruptions in securities settlement procedures. In addition, there may be more volatile rates of return.

Equity Investments Risk

Equity securities generally are subject to market risk. The Fund's investments in equity securities may include common stocks, preferred stocks, securities convertible into or exchangeable for common stocks, depositary receipts, ETFs, and REITs. Such investments may expose the Fund to additional risks. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company. Preferred stocks and convertible securities are sensitive to movements in interest rates. In addition, convertible securities are subject to the risk that the credit standing of the issuer may have an effect on the convertible securities' investment value. Depositary receipts are subject to certain of the risks associated with investing directly in foreign securities. ETFs are subject to certain of the risks associated with investing directly in foreign securities. Investments in REITs are subject to the risks associated with investing in the real estate industry such as adverse developments affecting the real estate industry and real property values.

Foreign Investing Risk

Non-U.S. investments carry potential risks not associated with U.S. investments. Such risks include, but are not limited to: (1) currency exchange rate fluctuations, (2) political and financial instability, (3) less liquidity and greater volatility, (4) lack of uniform accounting, auditing and financial reporting standards, (5) increased price volatility, (6) less government regulation and supervision of foreign stock exchanges, brokers and listed companies, and (7) delays in transaction settlement in some foreign markets.

Futures Contracts and Foreign Currency Forward Contracts Risk

Futures contracts and foreign currency forward contracts, including non-deliverable forwards (“NDFs”), are derivative instruments pursuant to a contract with a counterparty to pay a fixed price for an agreed amount of securities or other underlying assets at an agreed date or to buy or sell a specific currency at a future date at a price set at the time of the contract. The use of such derivative instruments may expose the Fund to additional risks that it would not be subject to if they invested directly in the securities underlying those derivatives. Futures contracts may experience potentially dramatic price changes (losses) and imperfect correlations between the price of the contract and the underlying security, index or currency which will increase the volatility of the Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. There can be no assurance that any strategy used will succeed. Not all forward contracts, including NDFs, require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty.

Investment Risk

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.

Issuer Risk

The value of a security may decline for a number of reasons which directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.

Market Events Risk

Turbulence in financial markets and reduced liquidity in equity, credit and fixed-income markets may negatively affect many issuers worldwide which could adversely affect the Fund.

Market Risk

Market risks, including political, regulatory, market and economic developments, and developments that impact specific economic sectors, industries or segments of the market, can affect the value of the Fund's shares. The Fund's equity investments are subject to stock market risk, which involves the possibility that the value of the Fund's investments in stocks will decline due to drops in the stock market. From time to time, certain investments held by the Fund may have limited marketability and may be difficult to sell at favorable times or prices. If the Fund is forced to sell such holdings to meet redemption requests or other cash needs, the Fund may have to sell them at a loss.

Market Timing Risk

Because the Fund invests in foreign securities, it is particularly subject to the risk of market timing activities. The Fund generally prices foreign securities using their closing prices from the foreign markets in which they trade, typically prior to the Fund's determination of its net asset value (“NAV”). These prices may be affected by events that occur after the close of a foreign market but before the Fund prices its shares. In such instances, the Fund may fair value foreign securities. However, some investors may engage in frequent short-term trading in the Fund to take advantage of any price differentials that may be reflected in the NAV of the Fund's shares. There is no assurance that fair valuation of securities can reduce or eliminate market timing. While the Manager monitors trading in Fund shares, there is no guarantee that it can detect all market timing activities.

Mid-Capitalization Companies Risk

Investing in the securities of medium capitalization companies involves greater risk and the possibility of greater price volatility than investing in larger capitalization and more established companies, since medium-sized companies may have limited operating history, product lines, and financial resources, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to expected changes in interest rates, borrowing costs and earnings.

Other Investment Companies Risk

The Fund may invest in shares of other registered investment companies, including money market funds and ETFs. To the extent that the Fund invests in shares of other registered investment companies, you will indirectly bear fees and expenses charged by the underlying funds in addition to the Fund's direct fees and expenses and will be subject to the risks associated with investments in those funds.

Securities Selection Risk

Securities selected by the sub-advisor or the Manager for the Fund may not perform to expectations. This could result in the Fund's underperformance compared to other funds with similar investment objectives.

Small Capitalization Companies Risk

Investing in the securities of small capitalization companies involves greater risk and the possibility of greater price volatility than investing in larger capitalization and more established companies, since small sized companies may have limited operating history, product lines, and financial resources, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to expected changes in interest rates, borrowing costs and earnings.

Fund Performance

Performance information for the Fund is not provided because the Fund has not been in operation for a full calendar year.

[1] A contingent deferred sales charge ('CDSC') of 0.50% will be charged on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.

[1] Other expenses are based on estimated expenses for the current fiscal year.

[2] The Manager has contractually agreed to reduce and/or reimburse the A Class, C Class, Y Class, Institutional Class, and Investor Class of the Fund for Other Expenses, as applicable, through December 31, 2014 to the extent that Total Annual Fund Operating Expenses exceed 1.85% for the A Class, 2.60% for the C Class, 1.45% for the Y Class, 1.35% for the Institutional Class and 1.73% for the Investor Class (excluding taxes, brokerage commissions, acquired fund fees and expenses and other extraordinary expenses such as litigation). The contractual expense reimbursement can be changed by approval of a majority of the Fund's Board of Trustees. The Manager can be reimbursed by the Fund for any contractual or voluntary fee reductions or expense reimbursements if reimbursement to the Manager (a) occurs within three years after the Manager's own reduction or reimbursement and (b) does not cause the Total Annual Fund Operating Expenses of a class to exceed the percentage limit contractually agreed.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Entity Central Index Key

dei_EntityCentralIndexKey

0000809593

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

American Beacon Earnest Partners Emerging Markets Equity Fund^SM

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund's investment objective is 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. You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in the A Class shares of the American Beacon Funds. More information about these and other discounts is available from your financial professional and in “Choosing Your Share Class” on page 14 of the Prospectus and “Additional Purchase and Sale Information for A Class Shares” on page 28 of the statement of additional information.

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

2014-12-31

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. The Fund's portfolio turnover rate for the Fund's last fiscal year is not provided because the Fund has not commenced operations prior to the date of this prospectus.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales discounts if you and your eligible family members invest, or agree to invest in the future, at least $50,000 in the A Class shares of the American Beacon Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

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 then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming no redemption of shares:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

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Under normal circumstances, at least 80% of the Fund's net assets (plus the amount of any borrowings for investment purposes) are invested in equity securities of issuers economically tied to emerging market countries. A company is generally regarded as being economically tied to an emerging markets country if it:

·      is primarily listed on the trading market of an emerging market country;

·      is headquartered in an emerging market country; or

·      derives 50% or more of its revenues from, or has 50% or more of its assets in, an emerging market country.

An emerging market country is one that:

·      has an emerging stock market as defined by the International Finance Corporation;

·      has a low- to middle-income economy according to the World Bank;

·      is included in the IFC Investable Index or the Morgan Stanley Capital International Emerging Markets Index; or

·      has a per-capita gross national product of $10,000 or less.

The Fund's equity investments may include common stocks, preferred stocks, securities convertible into or exchangeable for common stocks, depositary receipts (collectively referred to as “stocks”), exchange-traded funds (“ETFs”), and real estate investments trusts (“REITs”). The Fund may invest in companies of all market capitalizations and convertible securities of any duration.

The Fund's sub-advisor, EARNEST Partners, LLC (“EARNEST Partners”), selects securities within the emerging markets category using a proprietary screening model and fundamental analysis. EARNEST Partners seeks to outperform the designated benchmark, while controlling volatility and underperformance risk. EARNEST Partners uses screens to attempt to identify the financial and market characteristics that were in place when an individual company produced superior performance. Characteristics include: valuation measures, market trends, operating trends, growth measures, and profitability measures. The investment team then focuses its fundamental analysis on companies it believes are in attractive industries, with developed strategies, talented management teams, sufficient funding, strong performance results, a competitive advantage, and a viable method of profit development. The decision to sell a security is typically made based upon the realization of EARNEST Partners' investment thesis, identification of another stock that it believes has superior return and risk characteristics, or deterioration in the company's prospects due to unsatisfactory business execution, changing market conditions, or other adverse effects.

The Fund may also invest cash balances in other investment companies, including money market funds and exchange-traded funds (“ETFs”), and may purchase and sell futures or forward contracts to gain market exposure on cash balances or reduce market exposure in anticipation of liquidity needs.

Risk [Heading]

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Principal Risks

Risk Narrative [Text Block]

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There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund. The Fund is not designed for investors who need an assured level of income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund are:

Currency Risk

Foreign currencies may decline in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies.

Emerging Markets Risk

When investing in emerging markets, the risks of investing in foreign securities discussed below are heightened. Emerging markets have unique risks that are greater than or in addition to investing in developed markets because emerging markets are generally smaller, less developed, less liquid and more volatile than the securities markets of the U.S. and other developed markets. There are also risks of: greater political uncertainties; an economy's dependence on revenues from particular commodities or on international aid or development assistance; currency transfer restrictions; a limited number of potential buyers for such securities; and delays and disruptions in securities settlement procedures. In addition, there may be more volatile rates of return.

Equity Investments Risk

Equity securities generally are subject to market risk. The Fund's investments in equity securities may include common stocks, preferred stocks, securities convertible into or exchangeable for common stocks, depositary receipts, ETFs, and REITs. Such investments may expose the Fund to additional risks. Common stock generally is subordinate to preferred stock upon the liquidation or bankruptcy of the issuing company. Preferred stocks and convertible securities are sensitive to movements in interest rates. In addition, convertible securities are subject to the risk that the credit standing of the issuer may have an effect on the convertible securities' investment value. Depositary receipts are subject to certain of the risks associated with investing directly in foreign securities. ETFs are subject to certain of the risks associated with investing directly in foreign securities. Investments in REITs are subject to the risks associated with investing in the real estate industry such as adverse developments affecting the real estate industry and real property values.

Foreign Investing Risk

Non-U.S. investments carry potential risks not associated with U.S. investments. Such risks include, but are not limited to: (1) currency exchange rate fluctuations, (2) political and financial instability, (3) less liquidity and greater volatility, (4) lack of uniform accounting, auditing and financial reporting standards, (5) increased price volatility, (6) less government regulation and supervision of foreign stock exchanges, brokers and listed companies, and (7) delays in transaction settlement in some foreign markets.

Futures Contracts and Foreign Currency Forward Contracts Risk

Futures contracts and foreign currency forward contracts, including non-deliverable forwards (“NDFs”), are derivative instruments pursuant to a contract with a counterparty to pay a fixed price for an agreed amount of securities or other underlying assets at an agreed date or to buy or sell a specific currency at a future date at a price set at the time of the contract. The use of such derivative instruments may expose the Fund to additional risks that it would not be subject to if they invested directly in the securities underlying those derivatives. Futures contracts may experience potentially dramatic price changes (losses) and imperfect correlations between the price of the contract and the underlying security, index or currency which will increase the volatility of the Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. There can be no assurance that any strategy used will succeed. Not all forward contracts, including NDFs, require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty.

Investment Risk

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.

Issuer Risk

The value of a security may decline for a number of reasons which directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.

Market Events Risk

Turbulence in financial markets and reduced liquidity in equity, credit and fixed-income markets may negatively affect many issuers worldwide which could adversely affect the Fund.

Market Risk

Market risks, including political, regulatory, market and economic developments, and developments that impact specific economic sectors, industries or segments of the market, can affect the value of the Fund's shares. The Fund's equity investments are subject to stock market risk, which involves the possibility that the value of the Fund's investments in stocks will decline due to drops in the stock market. From time to time, certain investments held by the Fund may have limited marketability and may be difficult to sell at favorable times or prices. If the Fund is forced to sell such holdings to meet redemption requests or other cash needs, the Fund may have to sell them at a loss.

Market Timing Risk

Because the Fund invests in foreign securities, it is particularly subject to the risk of market timing activities. The Fund generally prices foreign securities using their closing prices from the foreign markets in which they trade, typically prior to the Fund's determination of its net asset value (“NAV”). These prices may be affected by events that occur after the close of a foreign market but before the Fund prices its shares. In such instances, the Fund may fair value foreign securities. However, some investors may engage in frequent short-term trading in the Fund to take advantage of any price differentials that may be reflected in the NAV of the Fund's shares. There is no assurance that fair valuation of securities can reduce or eliminate market timing. While the Manager monitors trading in Fund shares, there is no guarantee that it can detect all market timing activities.

Mid-Capitalization Companies Risk

Investing in the securities of medium capitalization companies involves greater risk and the possibility of greater price volatility than investing in larger capitalization and more established companies, since medium-sized companies may have limited operating history, product lines, and financial resources, the securities of these companies may lack sufficient market liquidity, and they can be particularly sensitive to expected changes in interest rates, borrowing costs and earnings.

Other Investment Companies Risk

The Fund may invest in shares of other registered investment companies, including money market funds and ETFs. To the extent that the Fund invests in shares of other registered investment companies, you will indirectly bear fees and expenses charged by the underlying funds in addition to the Fund's direct fees and expenses and will be subject to the risks associated with investments in those funds.

Securities Selection Risk

Securities selected by the sub-advisor or the Manager for the Fund may not perform to expectations. This could result in the Fund's underperformance compared to other funds with similar investment objectives.

Small Capitalization Companies Risk

Investing in the securities of small capitalization companies involves greater risk and the possibility of greater price volatility than investing in larger capitalization and more established companies, since small sized companies may have limited operating history, product lines, and financial resources, the securities of these companies may lack sufficient market liquidity and they can be particularly sensitive to expected changes in interest rates, borrowing costs and earnings.

Risk Lose Money [Text]

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There is no assurance that the Fund will achieve its investment objective and you could lose part or all of your investment in the Fund.

Risk Not Insured Depository Institution [Text]

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An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table [Heading]

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Fund Performance

Performance Narrative [Text Block]

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Performance information for the Fund is not provided because the Fund has not been in operation for a full calendar year.

A Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.75%

Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

0.50%

^[1]

Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

1.55%

^[2]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.56%

Expense Reduction and Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.70%

Total annual fund operating expenses after expense reduction and reimbursement

rr_NetExpensesOverAssets

1.86%

^[3]

1 year

rr_ExpenseExampleYear01

753

3 years

rr_ExpenseExampleYear03

1,263

C Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

1.55%

^[2]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

3.31%

Expense Reduction and Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.70%

Total annual fund operating expenses after expense reduction and reimbursement

rr_NetExpensesOverAssets

2.61%

^[3]

1 year

rr_ExpenseExampleYear01

364

3 years

rr_ExpenseExampleYear03

954

1 year

rr_ExpenseExampleNoRedemptionYear01

264

3 years

rr_ExpenseExampleNoRedemptionYear03

954

Y Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

1.40%

^[2]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.16%

Expense Reduction and Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.70%

Total annual fund operating expenses after expense reduction and reimbursement

rr_NetExpensesOverAssets

1.46%

^[3]

1 year

rr_ExpenseExampleYear01

149

3 years

rr_ExpenseExampleYear03

609

Institutional Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

1.30%

^[2]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.06%

Expense Reduction and Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.70%

Total annual fund operating expenses after expense reduction and reimbursement

rr_NetExpensesOverAssets

1.36%

^[3]

1 year

rr_ExpenseExampleYear01

138

3 years

rr_ExpenseExampleYear03

578

Investor Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (as a percentage of the lower of original offering price or redemption proceeds)

rr_MaximumDeferredSalesChargeOverOther

none

Redemption fee (as a percentage of amount redeemed; applies to the proceeds of shares redeemed within 90 days of purchase)

rr_RedemptionFeeOverRedemption

2.00%

Management fees

rr_ManagementFeesOverAssets

0.75%

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

1.67%

^[2]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total annual fund operating expenses

rr_ExpensesOverAssets

2.43%

Expense Reduction and Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

0.69%

Total annual fund operating expenses after expense reduction and reimbursement

rr_NetExpensesOverAssets

1.74%

^[3]

1 year

rr_ExpenseExampleYear01

177

3 years

rr_ExpenseExampleYear03

$ 692

[1] A contingent deferred sales charge ('CDSC') of 0.50% will be charged on certain purchases of $1,000,000 or more of A Class shares that are redeemed in whole or part within 18 months of purchase.

[2] Other expenses are based on estimated expenses for the current fiscal year.

[3] The Manager has contractually agreed to reduce and/or reimburse the A Class, C Class, Y Class, Institutional Class, and Investor Class of the Fund for Other Expenses, as applicable, through December 31, 2014 to the extent that Total Annual Fund Operating Expenses exceed 1.85% for the A Class, 2.60% for the C Class, 1.45% for the Y Class, 1.35% for the Institutional Class and 1.73% for the Investor Class (excluding taxes, brokerage commissions, acquired fund fees and expenses and other extraordinary expenses such as litigation). The contractual expense reimbursement can be changed by approval of a majority of the Fund's Board of Trustees. The Manager can be reimbursed by the Fund for any contractual or voluntary fee reductions or expense reimbursements if reimbursement to the Manager (a) occurs within three years after the Manager's own reduction or reimbursement and (b) does not cause the Total Annual Fund Operating Expenses of a class to exceed the percentage limit contractually agreed.

XML

Document and Entity Information	0 Months Ended
	Aug. 28, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Aug. 28, 2013
Entity Registrant Name	AMERICAN BEACON FUNDS
Entity Central Index Key	0000809593
Amendment Flag	false
Document Creation Date	Aug. 27, 2013
Document Effective Date	Aug. 28, 2013
Prospectus Date	Aug. 28, 2013