TIAA-CREF International Equity Index Fund

TIAA-CREF International Equity Index Fund

Investment objective

The Fund seeks a favorable long-term total return, mainly through capital appreciation, by investing primarily in a portfolio of foreign equity investments based on a market index.

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 - TIAA-CREF International Equity Index Fund	Institutional Class	Advisor Class	Premier Class	Retirement Class
Maximum sales charge imposed on purchases (percentage of offering price)	none	none	none	none
Maximum deferred sales charge	none	none	none	none
Maximum sales charge imposed on reinvested dividends and other distributions	none	none	none	none
Redemption or exchange fee	none	none	none	none
Maximum account fee	none	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 - TIAA-CREF International Equity Index Fund		Institutional Class	Advisor Class		Premier Class	Retirement Class
Management fees		0.04%	0.04%		0.04%	0.04%
Distribution (Rule 12b-1) fees					0.15%
Other expenses		0.02%	0.13%	[1]	0.02%	0.27%
Total annual Fund operating expenses		0.06%	0.17%		0.21%	0.31%
Waivers and expense reimbursements	[2]
Total annual Fund operating expenses after fee waiver and/or expense reimbursement		0.06%	0.17%		0.21%	0.31%

Example

This example is intended to help you compare the cost of investing in shares of 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 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, before expense reimbursements, remain the same. The example assumes that the Fund’s expense reimbursement agreement will remain in place through February 28, 2017, but that there will be no waiver or expense reimbursement agreement in effect thereafter. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - TIAA-CREF International Equity Index Fund - USD ($)	Institutional Class	Advisor Class	Premier Class	Retirement Class
1 year	$ 6	$ 17	$ 22	$ 32
3 years	19	55	68	100
5 years	34	96	118	174
10 years	$ 77	$ 217	$ 268	$ 393

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 fiscal year ended October 31, 2015, the Fund’s portfolio turnover rate was 5% of the average value of its portfolio.

Principal investment strategies

Under normal circumstances, the Fund invests at least 80% of its assets in securities of its benchmark index (the MSCI EAFE^®Index). The MSCI EAFE^®Index measures stock performance in certain countries outside North America. The Fund buys most, but not necessarily all, of the stocks included in its benchmark index, and will attempt to closely match the overall investment characteristics of its benchmark index. For purposes of the 80% investment policy, the term “assets” means net assets, plus the amount of any borrowings for investment purposes.

The Fund is designed to track various foreign equity markets as a whole or a segment of these markets. The Fund primarily invests its assets in equity securities its investment adviser, Teachers Advisors, Inc. (“Advisors”), has selected to track a designated stock market index. Because the return of an index is not reduced by investment and other operating expenses, the Fund’s ability to match the returns of the MSCI EAFE^®Index is negatively affected by the costs of buying and selling securities as well as the Fund’s fees and other expenses. The use of a particular index by the Fund is not a fundamental policy and may be changed without shareholder approval. The portfolio management team of Advisors will attempt to build a portfolio that generally matches the market weighted investment characteristics of the Fund’s benchmark index.

Principal investment risks

You could lose money over short or long periods by investing in this Fund. An investment in the Fund, due to the nature of the Fund’s portfolio holdings, typically is subject to the following principal investment risks:

· Market Risk—The risk that market prices of portfolio investments held by the Fund may fall rapidly or unpredictably due to a variety of factors, including changing economic, political or market conditions. Market risk may affect a single issuer, industry or sector of the economy, or it may affect the market as a whole.

· Issuer Risk (often called Financial Risk)—The risk that an issuer’s earnings prospects and overall financial position will deteriorate, causing a decline in the value of the issuer’s financial instruments over short or extended periods of time.

· Foreign Investment Risk—Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, currency, market or economic developments and can result in greater price volatility and perform differently from financial instruments of U.S. issuers. This risk may be heightened in emerging or developing markets. Foreign investments may also be less liquid and more difficult to value than investments in U.S. issuers.

· Index Risk—The risk that the Fund’s performance may not correspond to its benchmark index for any period of time and may underperform such index or the overall financial market. Additionally, to the extent that the Fund’s investments vary from the composition of its benchmark index, the Fund’s performance could potentially vary from the index’s performance to a greater extent than if the Fund merely attempted to replicate the index.

· Large-Cap Risk—The risk that large-capitalization companies are more mature and may grow more slowly than the economy as a whole and tend to go in and out of favor based on market and economic conditions.

· Mid-Cap Risk—The risk that the stocks of mid-capitalization companies often experience greater price volatility, lower trading volume and less liquidity than the stocks of larger, more established companies.

Please see the non-summary portion of the Prospectus for more detailed information about the risks described above.

Past performance

The following chart and table help illustrate some of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year. The bar chart shows the annual total returns of the Institutional Class of the Fund, before taxes, in each full calendar year for the last ten years. Because the expenses vary across share classes, the performance of the Institutional Class may vary from the other share classes. Below the bar chart are the best and worst returns of the Institutional Class for a calendar quarter during the full calendar-year periods covered by the bar chart. The performance table following the bar chart shows the Fund’s average annual total returns for the Institutional Class, Premier Class and Retirement Class over the applicable one-year, five-year, ten-year and since-inception periods ended December 31, 2015, and how those returns compare to those of the Fund’s benchmark index. The Advisor Class does not have a full year of performance and is not included in the table. After-tax performance is shown only for Institutional Class shares, and after-tax returns for the Retirement Class and Premier Class shares will vary from the after-tax returns presented for Institutional Class shares.

The returns shown below reflect previous agreements by Advisors to waive or reimburse the Fund for certain fees and expenses. Without these waivers and reimbursements, the returns of the Fund would have been lower. Past performance of the Fund (before and after taxes) is not necessarily an indication of how it will perform in the future. The benchmark index listed below is unmanaged, and you cannot invest directly in an index. The returns for the benchmark index reflect no deduction for fees, expenses or taxes.

For current performance information of each share class, including performance to the most recent month-end, please visit www.tiaa.org.

ANNUAL TOTAL RETURNS FOR THE INSTITUTIONAL CLASS SHARES (%) International Equity Index Fund

Best quarter: 25.38%, for the quarter ended June 30, 2009. Worst quarter: -19.99%, for the quarter ended September 30, 2011.

AVERAGE ANNUAL TOTAL RETURNS For the Periods Ended December 31, 2015

Average Annual Returns - TIAA-CREF International Equity Index Fund	1 Year	5 Years	10 Years		Inception Date
Institutional Class	(0.49%)	3.72%	3.10%		Oct. 01, 2002
Retirement Class	(0.75%)	3.46%	2.86%		Oct. 01, 2002
Premier Class	(0.69%)	3.56%	3.01%	[1]	Sep. 30, 2009
After Taxes on Distributions | Institutional Class	(1.33%)	2.92%	2.49%
After Taxes on Distributions and Sale of Fund Shares | Institutional Class	0.17%	2.81%	2.49%
MSCI EAFE® Index (reflects no deductions for fees, expenses or taxes)	(0.81%)	3.60%	3.03%

Current performance of the Fund’s shares may be higher or lower than that shown above.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates in effect during the periods shown and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements such as 401(a), 401(k) or 403(b) plans or Individual Retirement Accounts (IRAs). After-tax returns are shown for only one class, and after-tax returns for other classes will vary.

[1] Estimate is for the current fiscal year.

[2] Under the Fund's expense reimbursement arrangements, the Fund's investment adviser, Teachers Advisors, Inc., has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.15% of average daily net assets for Institutional Class shares; (ii) 0.30% of average daily net assets for Advisor Class shares; (iii) 0.30% of average daily net assets for Premier Class shares; and (iv) 0.40% of average daily net assets for Retirement Class shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2017, unless changed with approval of the Board of Trustees.

[1] The performance shown for the Premier Class that is prior to its inception date is based on performance of the Fund's Institutional Class. The performance for these periods has not been restated to reflect higher expenses of the Premier Class. If those expenses had been reflected, the performance would have been lower.