UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-05833

Registrant’s telephone number, including area code: (410) 345-2000

Date of fiscal year end: October 31

Date of reporting period: July 31, 2012

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional International Growth Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments primarily in the common stocks of established, non-U.S. companies.

Basis of Preparation
The accompanying Portfolio of Investments was prepared in accordance with accounting principles generally accepted in the United States of America (GAAP), which require the use of estimates made by management. Management believes that estimates and valuations are appropriate; however, actual results may differ from those estimates, and the valuations reflected in the Portfolio of Investments may differ from the values ultimately realized upon sale or maturity.

Investment Transactions
Investment transactions are accounted for on the trade date.

Currency Translation
Assets, including investments, and liabilities denominated in foreign currencies are translated into U.S. dollar values each day at the prevailing exchange rate, using the mean of the bid and asked prices of such currencies against U.S. dollars as quoted by a major bank. Purchases and sales of securities are translated into U.S. dollars at the prevailing exchange rate on the date of the transaction.

New Accounting Pronouncements
In May 2011, the Financial Accounting Standards Board (FASB) issued amended guidance to align fair value measurement and disclosure requirements in U.S. GAAP with International Financial Reporting Standards. The guidance is effective for fiscal years and interim periods beginning on or after December 15, 2011. Adoption had no effect on net assets or results of operations.

In December 2011, the FASB issued amended guidance to enhance disclosure for offsetting assets and liabilities. The guidance is effective for fiscal years and interim periods beginning on or after January 1, 2013. Adoption will have no effect on the fund’s net assets or results of operations.

The fund’s financial instruments are reported at fair value as defined by GAAP. The fund values its investments and computes its net asset value per share at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET, each day that the NYSE is open for business.

Valuation Methods
Equity securities listed or regularly traded on a securities exchange or in the over-the-counter (OTC) market are valued at the last quoted sale price or, for certain markets, the official closing price at the time the valuations are made, except for OTC Bulletin Board securities, which are valued at the mean of the latest bid and asked prices. A security that is listed or traded on more than one exchange is valued at the quotation on the exchange determined to be the primary market for such security. Listed securities not traded on a particular day are valued at the mean of the latest bid and asked prices for domestic securities and the last quoted sale price for international securities. Debt securities with remaining maturities of less than one year at the time of acquisition generally use amortized cost in local currency to approximate fair value.

However, if amortized cost is deemed not to reflect fair value or the fund holds a significant amount of such securities with remaining maturities of more than 60 days, the securities are valued at prices furnished by dealers who make markets in such securities or by an independent pricing service.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Other investments, including restricted securities and private placements, and those for which the above valuation procedures are inappropriate or are deemed not to reflect fair value, are stated at fair value as determined in good faith by the T. Rowe Price Valuation Committee, established by the fund’s Board of Directors (the Board). Subject to oversight by the Board, the Valuation Committee develops pricing-related policies and procedures and approves all fair-value determinations. The Valuation Committee regularly makes good faith judgments, using a wide variety of sources and information, to establish and adjust valuations of certain securities as events occur and circumstances warrant. For instance, in determining the fair value of private-equity instruments, the Valuation Committee considers a variety of factors, including the company’s business prospects, its financial performance, strategic events impacting the company, relevant valuations of similar companies, new rounds of financing, and any negotiated transactions of significant size between other investors in the company. Because any fair-value determination involves a significant amount of judgment, there is a degree of subjectivity inherent in such pricing decisions.

For valuation purposes, the last quoted prices of non-U.S. equity securities may be adjusted under the circumstances described below. If the fund determines that developments between the close of a foreign market and the close of the NYSE will, in its judgment, materially affect the value of some or all of its portfolio securities, the fund will adjust the previous closing prices to reflect what it believes to be the fair value of the securities as of the close of the NYSE. In deciding whether it is necessary to adjust closing prices to reflect fair value, the fund reviews a variety of factors, including developments in foreign markets, the performance of U.S. securities markets, and the performance of instruments trading in U.S. markets that represent foreign securities and baskets of foreign securities. A fund may also fair value securities in other situations, such as when a particular foreign market is closed but the fund is open. The fund uses outside pricing services to provide it with closing prices and information to evaluate and/or adjust those prices. The fund cannot predict how often it will use closing prices and how often it will determine it necessary to adjust those prices to reflect fair value. As a means of evaluating its security valuation process, the fund routinely compares closing prices, the next day’s opening prices in the same markets, and adjusted prices. Additionally, trading in the underlying securities of the fund may take place in various foreign markets on certain days when the fund is not open for business and does not calculate a net asset value. As a result, net asset values may be significantly affected on days when shareholders cannot make transactions.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

Observable inputs are those based on market data obtained from sources independent of the fund, and unobservable inputs reflect the fund’s own assumptions based on the best information available. The input levels are not necessarily an indication of the risk or liquidity associated with financial instruments at that level. For example, non-U.S. equity securities actively traded in foreign markets generally are reflected in Level 2 despite the availability of closing prices because the fund evaluates and determines whether those closing prices reflect fair value at the close of the NYSE or require adjustment, as described above. The following table summarizes the fund’s financial instruments, based on the inputs used to determine their values on July 31, 2012:

Following is a reconciliation of the fund’s Level 3 holdings for the nine months ended July 31, 2012. Gain (loss) reflects both realized and change in unrealized gain (loss) on Level 3 holdings during the period, if any. The change in unrealized gain (loss) on Level 3 instruments held at July 31, 2012, totaled $0 for the nine months ended July 31, 2012.

Consistent with its investment objective, the fund engages in the following practices to manage exposure to certain risks and/or to enhance performance. The investment objective, policies, program, and risk factors of the fund are described more fully in the fund’s prospectus and Statement of Additional Information.

Emerging Markets
The fund may invest, directly or through investments in T. Rowe Price institutional funds, in securities of companies located in emerging markets, issued by governments of emerging market countries, and/or denominated in or linked to the currencies of emerging market countries. Emerging market securities are often subject to greater price volatility, less liquidity, and higher rates of inflation than U.S. securities. In addition, emerging markets may be subject to greater political, economic and social uncertainty and differing regulatory environments that may potentially impact the fund’s ability to buy or sell certain securities or repatriate proceeds to U.S. dollars.

Restricted Securities
The fund may invest in securities that are subject to legal or contractual restrictions on resale. Prompt sale of such securities at an acceptable price may be difficult and may involve substantial delays and additional costs.

Repurchase Agreements
The fund may invest in repurchase agreements. All repurchase agreements are fully collateralized by U.S. government securities. Collateral is in the possession of the fund’s custodian or, for tri-party agreements, the custodian designated by the agreement. Collateral is evaluated daily to ensure that its market value exceeds the delivery value of the repurchase agreements at maturity. Although risk is mitigated by the collateral, the fund could experience a delay in recovering its value and a possible loss of income or value if the counterparty fails to perform in accordance with the terms of the agreement.

Securities Lending
The fund lends its securities to approved brokers to earn additional income. It receives as collateral cash and U.S. government securities valued at 102% to 105% of the value of the securities on loan. Collateral is maintained over the life of the loan in an amount not less than the value of loaned securities as determined at the close of fund business each day; any adjustments to collateral balances resulting from changes in security values are settled the next business day. Cash collateral is invested by the fund’s lending agent(s) in accordance with investment guidelines approved by management. Although risk is mitigated by the collateral, the fund could experience a delay in recovering its securities and a possible loss of income or value if the borrower fails to return the securities or if collateral investments decline in value. In accordance with GAAP, investments made with cash collateral are reflected in the accompanying portfolio of investments, but collateral received in the form of securities are not. On July 31, 2012, the value of cash collateral investments was $945,000 and the value of loaned securities was $886,000.

At July 31, 2012, the cost of investments for federal income tax purposes was $73,295,000. Net unrealized gain aggregated $5,923,000 at period-end, of which $11,886,000 related to appreciated investments and $5,963,000 related to depreciated investments.

The fund may invest in the T. Rowe Price Reserve Investment Fund and the T. Rowe Price Government Reserve Investment Fund (collectively, the T. Rowe Price Reserve Investment Funds), open-end management investment companies managed by T. Rowe Price Associates, Inc. (Price Associates) and considered affiliates of the fund. The T. Rowe Price Reserve Investment Funds are offered as cash management options to mutual funds, trusts, and other accounts managed by Price Associates and/or its affiliates and are not available for direct purchase by members of the public. The T. Rowe Price Reserve Investment Funds pay no investment management fees.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Emerging Markets Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments primarily in the common stocks of companies located (or with primary operations) in emerging markets.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

China A shares
The fund may invest in certain Chinese equity securities (A shares) available only to local Chinese investors and Qualified Foreign Institutional Investors (QFII). The fund gains access to the A-share market through T. Rowe Price Associates, Inc., which serves as the registered QFII for all participating T. Rowe Price-sponsored products (each a participating account). Investment decisions related to A shares are specific to each participating account, and each account bears the resultant economic and tax consequences of its holdings and transactions in A shares. The fund is subject to certain restrictions and administrative processes relating to its ability to repatriate cash balances, investment proceeds, and earnings associated with its A shares and may incur substantial delays in gaining access to its assets or a loss of value in the event of noncompliance with applicable Chinese rules or requirements.

At July 31, 2012, the cost of investments for federal income tax purposes was $770,956,000. Net unrealized gain aggregated $137,672,000 at period-end, of which $183,956,000 related to appreciated investments and $46,284,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Global Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments primarily in the common stocks of established companies throughout the world, including the U.S.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

Following is a reconciliation of the fund’s Level 3 holdings for the nine months ended July 31, 2012. Transfers into and out of Level 3 are reflected at the value of the financial instrument at the beginning of the period. Gain (loss) reflects both realized and change in unrealized gain (loss) on Level 3 holdings during the period, if any. The change in unrealized gain (loss) on Level 3 instruments held at July 31, 2012, totaled $0 for the nine months ended July 31, 2012.

At July 31, 2012, the cost of investments for federal income tax purposes was $129,021,000. Net unrealized gain aggregated $21,510,000 at period-end, of which $27,165,000 related to appreciated investments and $5,655,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Africa & Middle East Fund (the fund) is a nondiversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital by investing primarily in the common stocks of companies located (or with primary operations) in Africa and the Middle East.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

Participation Notes
The fund may invest in participation notes and other types of equity-linked derivative instruments (referred to collectively as participation notes), through which a counterparty provides exposure to common stock, in the form of an unsecured interest, in markets where direct investment by the fund is not possible. Participation notes provide the economic benefit of common stock ownership to the fund, while legal ownership and voting rights are retained by the counterparty. Although participation notes are usually structured with a defined maturity or termination date, early redemption may be possible. Risks associated with participation notes include the possible failure of a counterparty to perform in accordance with the terms of the agreement, inability to transfer or liquidate the notes, potential delays or an inability to redeem before maturity under certain market conditions, and limited legal recourse against the issuer of the underlying common stock.

At July 31, 2012, the cost of investments for federal income tax purposes was $123,817,000. Net unrealized gain aggregated $14,839,000 at period-end, of which $18,317,000 related to appreciated investments and $3,478,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Global Large-Cap Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments primarily in the common stocks of large-cap companies throughout the world, including the U.S.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

At July 31, 2012, the cost of investments for federal income tax purposes was $51,735,000. Net unrealized gain aggregated $5,318,000 at period-end, of which $6,997,000 related to appreciated investments and $1,679,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Concentrated International Equity Fund (the fund) is a nondiversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments in stocks of non-U.S. companies.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

Emerging Markets
The fund may invest, directly or through investments in T. Rowe Price institutional funds, in securities of companies located in emerging markets, issued by governments of emerging market countries, and/or denominated in or linked to the currencies of emerging market countries. Emerging market securities are often subject to greater price volatility, less liquidity, and higher rates of inflation than U.S. securities. In addition, emerging markets may be subject to greater political, economic, and social uncertainty and differing regulatory environments that may potentially impact the fund’s ability to buy or sell certain securities or repatriate proceeds to U.S. dollars.

At July 31, 2012, the cost of investments for federal income tax purposes was $7,114,000. Net unrealized gain aggregated $240,000 at period-end, of which $433,000 related to appreciated investments and $193,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional International Core Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term growth of capital through investments in the common stocks of non-U.S. companies.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

At July 31, 2012, the cost of investments for federal income tax purposes was $69,774,000. Net unrealized loss aggregated $7,113,000 at period-end, of which $3,527,000 related to appreciated investments and $10,640,000 related to depreciated investments.

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Global Value Equity Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund seeks long-term capital appreciation.

Investment Transactions
Investment transactions are accounted for on the trade date.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Valuation Inputs
Various inputs are used to determine the value of the fund’s financial instruments. These inputs are summarized in the three broad levels listed below:

Level 2 – observable inputs other than Level 1 quoted prices (including, but not limited to, quoted prices for similar financial instruments, interest rates, prepayment speeds, and credit risk)

At July 31, 2012, the cost of investments for federal income tax purposes was $8,447,000. Net unrealized gain aggregated $131,000 at period-end, of which $149,000 related to appreciated investments and $18,000 related to depreciated investments.

(a) The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-Q was recorded, processed, summarized, and reported timely.

(b) The registrant’s principal executive officer and principal financial officer are aware of no change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Separate certifications by the registrant's principal executive officer and principal financial officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

T. Rowe Price Institutional International Funds, Inc.

	By	/s/ Edward C. Bernard
		Edward C. Bernard
		Principal Executive Officer

Date September 14, 2012

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

	By	/s/ Edward C. Bernard
		Edward C. Bernard
		Principal Executive Officer

Date September 14, 2012


	By	/s/ Gregory K. Hinkle
		Gregory K. Hinkle
		Principal Financial Officer

Date September 14, 2012

1.	I have reviewed this report on Form N-Q of T. Rowe Price Institutional International Funds, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed;

4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

	(c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report, based on such evaluation; and

	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

1.	I have reviewed this report on Form N-Q of T. Rowe Price Institutional International Funds, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed;

4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

	(c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report, based on such evaluation; and

	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	September 14, 2012	/s/ Edward C. Bernard
		Edward C. Bernard
		Principal Executive Officer