AWF AllianceBernstein Global High Income Fund Inc

ITEM 1. REPORTS TO STOCKHOLDERS.

SEP    ^09.30.21

SEMI-ANNUAL REPORT

ALLIANCEBERNSTEIN

GLOBAL HIGH INCOME FUND

(NYSE: AWF)

As of January 1, 2021, as permitted by new regulations adopted by the Securities and Exchange Commission, the Fund’s annual and semi-annual shareholder reports are no longer sent by mail, unless you specifically requested paper copies of the reports. Instead, the reports are made available on a website, and you will be notified by mail each time a report is posted and provided with a website address to access the report.

You may elect to receive all future reports in paper form free of charge. If you invest through a financial intermediary, you can contact your financial intermediary to request that you continue to receive paper copies of your shareholder reports; if you invest directly with the Fund, you can call Computershare at (800) 219 4218. Your election to receive reports in paper form will apply to all funds held in your account with your financial intermediary or, if you invest directly, to all AB Closed-end Funds you hold.

You may obtain a description of the Fund’s proxy voting policies and procedures, and information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, without charge. Simply visit AB’s website at www.abfunds.com, or go to the Securities and Exchange Commission’s (the “Commission”) website at www.sec.gov, or call AB at (800) 227 4618.

The Fund files its complete schedule of portfolio holdings with the Commission for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT. The Fund’s Form N-PORT reports are available on the Commission’s website at www.sec.gov. The Fund’s Forms N-PORT may also be reviewed and copied at the Commission’s Public Reference Room in Washington, DC; information on the operation of the Public Reference Room may be obtained by calling (800) SEC 0330.

AllianceBernstein Investments, Inc. (ABI) is the distributor of the AB family of mutual funds. ABI is a member of FINRA and is an affiliate of AllianceBernstein L.P., the Adviser of the funds.

The [A/B] logo is a registered service mark of AllianceBernstein and AllianceBernstein^® is a registered service mark used by permission of the owner, AllianceBernstein L.P.

FROM THE PRESIDENT

Dear Shareholder,

We’re pleased to provide this report for the AllianceBernstein Global High Income Fund, Inc. (the “Fund”). Please review the discussion of Fund performance, the market conditions during the reporting period and the Fund’s investment strategy.

At AB, we’re striving to help our clients achieve better outcomes by:

Whether you’re an individual investor or a multibillion-dollar institution, we’re putting our knowledge and experience to work for you every day.

For more information about AB’s comprehensive range of products and shareholder resources, please log on to www.abfunds.com.

Thank you for your investment in AB mutual funds—and for placing your trust in our firm.

Sincerely,

Onur Erzan

President and Chief Executive Officer, AB Mutual Funds

SEMI-ANNUAL REPORT

November 9, 2021

This report provides management’s discussion of fund performance for the AllianceBernstein Global High Income Fund, Inc. for the semi-annual reporting period ended September 30, 2021. The Fund is a closed-end fund and its shares of common stock trade on the New York Stock Exchange.

The Fund seeks high current income and, secondarily, capital appreciation.

RETURNS AS OF SEPTEMBER 30, 2021 (unaudited)

Please keep in mind that high, double-digit returns are highly unusual and cannot be sustained. Investors should also be aware that these returns were primarily achieved during favorable market conditions.

The Fund’s market price per share on September 30, 2021, was $12.27. The Fund’s NAV per share on September 30, 2021, was $12.98. For additional financial highlights, please see pages 118-119.

INVESTMENT RESULTS

The table above shows the Fund’s performance compared with its primary benchmark, the Bloomberg Global High Yield Index (USD hedged), as well as its blended benchmark for the six- and 12-month periods ended September 30, 2021. The blended benchmark is composed of equal weightings of the JPMorgan Government Bond Index-Emerging Markets (“JPM GBI-EM”) (local currency-denominated), the JPMorgan Emerging Markets Bond Index Global (“JPM EMBI Global”) and the Bloomberg US Corporate High Yield (“HY”) 2% Issuer Capped Index.

During the six-month period, the Fund outperformed its primary and blended benchmarks. Sector allocation was the main contributor, relative to the benchmark, mostly from the utilization of credit default swaps and an underweight to emerging-market corporate bonds that exceeded losses from exposures to US Treasuries and commercial-mortgage backed securities (“CMBS”). Security selection among US high-yield bonds, emerging-market corporate bonds, investment-grade corporate bonds and CMBS also contributed. Yield-curve position along the five- to 20-year parts of the yield curve in the US also added to returns. An underweight to the eurozone contributed at the country level. Currency

decisions were a minor contributor due to a long position in the Russian ruble. There were no other noteworthy detractors in the period.

During the 12-month period, the Fund outperformed its primary and blended benchmarks. Security selection among high-yield corporate bonds, investment-grade corporate bonds, emerging-market corporate bonds and CMBS contributed most. Sector allocation also contributed, primarily from credit default swaps in the eurozone and US, as well as an underweight to emerging-market corporate bonds, while sector allocations to CMBS, agency risk-sharing transactions and investment-grade corporate bonds detracted. Yield-curve positioning detracted, mostly from positioning on the five- to 10-year parts of the US yield curve. Country allocation also detracted, as losses from emerging-market country allocations to Brazil, Colombia, Russia and Turkey were greater than a gain from an underweight in the eurozone. Currency decisions did not have a material impact on performance during the period.

During both periods, the Fund utilized interest rate swaps, futures and interest rate swaptions to manage and hedge duration risk and/or to take active yield-curve positioning. Currency forwards and currency options, both written and purchased, were used to hedge foreign currency exposure and to take active currency risk. Credit default swaps were used to hedge credit risk and as a tool to effectively gain exposure to specific sectors. Total return swaps were used to take active credit risk. The utilization of leverage on behalf of the Fund contributed positively relative to the benchmark for both time periods. As the benchmark generated positive returns in excess of borrowing rates over both periods, the utilization of leverage contributed positively to the Fund’s absolute returns as well.

MARKET REVIEW AND INVESTMENT STRATEGY

Developed-market fixed-income market returns were mostly positive during the six-month period ended September 30, 2021. Longer-term government bond yields fell during most of the period in all regions except Europe on growth concerns from the coronavirus delta variant, until August when inflation reports and central bank tapering comments started to send yields higher. Low interest rates set the stage for the continued outperformance of risk assets, led by emerging-market high-yield sovereign bonds. Developed- and emerging-market high-yield and investment-grade corporate bonds also posted strong returns. Corporate bond returns were higher in the US than in Europe, mostly because of the divergence in government yields. Emerging-market local-currency bonds had positive performance but trailed developed-market treasuries as the US dollar rose against the majority of emerging-market currencies and all major developed-market currencies except the Swiss franc. Securitized assets advanced but trailed US Treasuries. Commodity prices continued their ascent, led by the continued recovery in Brent crude oil prices.

The Fund’s Investment Management Team (the “Team”) seeks to generate high current income and, secondarily, capital appreciation. The Fund is a globally diversified portfolio that takes full advantage of the Team’s best research ideas by pursuing high-income opportunities across all fixed-income sectors. The Fund invests primarily (and without limit) in corporate debt securities from US and non-US issuers, as well as government bonds from both developing and developed countries, including the US. Under normal market conditions, the Fund invests substantially in lower rated bonds, but may also invest in investment-grade and unrated debt securities.

INVESTMENT POLICIES

The Fund invests without limit in securities denominated in non-US currencies as well as those denominated in the US dollar. The Fund may also invest, without limit, in sovereign debt securities issued by emerging and developed nations and in debt securities of US and non-US corporate issuers. For more information regarding the Fund’s risks, please see “Disclosures and Risks” on pages 5-7 and “Note E—Risks Involved in Investing in the Fund” of the Notes to Financial Statements on pages 111-115.

DISCLOSURES AND RISKS

AllianceBernstein Global High Income Fund

Shareholder Information

Weekly comparative net asset value (“NAV”) and market price information about the Fund is published each Saturday in Barron’s and in other newspapers in a table called “Closed-End Funds.” Daily NAV and market price information, and additional information regarding the Fund, is available at www.abfunds.com and www.nyse.com. For additional shareholder information regarding this Fund, please see pages 120-121.

Benchmark Disclosure

All indices are unmanaged and do not reflect fees and expenses associated with the active management of a fund portfolio. The Bloomberg Global High Yield Index (USD hedged) represents non-investment grade fixed-income securities of companies in the US, and developed and emerging markets, hedged to the US dollar. The JPM^® GBI-EM represents the performance of local currency government bonds issued by emerging markets. The JPM EMBI Global (market-capitalization weighted) represents the performance of US dollar-denominated Brady bonds, Eurobonds and trade loans issued by sovereign and quasi-sovereign entities. The Bloomberg US Corporate HY 2% Issuer Capped Index is the 2% Issuer Capped component of the US Corporate High Yield Index, which represents the performance of fixed-income securities having a maximum quality rating of Ba1, a minimum amount outstanding of $150 million and at least one year to maturity. An investor cannot invest directly in an index, and its results are not indicative of the performance of any specific investment, including the Fund.

A Word About Risk

Market Risk: The market value of a security may move up or down, sometimes rapidly and unpredictably. These fluctuations may cause a security to be worth less than the price originally paid for it, or less than it was worth at an earlier time. Market risk may affect a single issuer, industry, sector of the economy or the market as a whole. Global economies and financial markets are increasingly interconnected, which increases the probabilities that conditions in one country or region might adversely impact issuers in a different country or region. Conditions affecting the general economy, including political, social, or economic instability at the local, regional, or global level may also affect the market value of a security. Health crises, such as pandemic and epidemic diseases, as well as other incidents that interrupt the expected course of events, such as natural disasters, including fires, earthquakes and flooding, war or civil disturbance, acts of terrorism, power outages and other unforeseeable and external events, and the public response to or fear of such diseases or events, have had, and may in the future have, an adverse effect on the Fund’s investments and net asset value and can lead to increased market volatility. For example, the diseases

DISCLOSURES AND RISKS (continued)

or events themselves or any preventative or protective actions that governments may take in respect of such diseases or events may result in periods of business disruption, inability to obtain raw materials, supplies and component parts, and reduced or disrupted operations for the Fund’s portfolio companies. The occurrence and pendency of such diseases or events could adversely affect the economies and financial markets either in specific countries or worldwide.

Interest-Rate Risk: Changes in interest rates will affect the value of investments in fixed-income securities. When interest rates rise, the value of existing investments in fixed-income securities tends to fall and this decrease in value may not be offset by higher income from new investments. Interest-rate risk is generally greater for fixed-income securities with longer maturities or durations. The current historically low interest rate environment heightens the risks associated with rising interest rates.

Credit Risk: An issuer or guarantor of a fixed-income security, or the counterparty to a derivatives or other contract, may be unable or unwilling to make timely payments of interest or principal, or to otherwise honor its obligations. The issuer or guarantor may default, causing a loss of the full principal amount of a security and accrued interest. The degree of risk for a particular security may be reflected in its credit rating. There is the possibility that the credit rating of a fixed-income security may be downgraded after purchase, which may adversely affect the value of the security.

Below Investment-Grade Securities Risk: Investments in fixed-income securities with lower ratings (commonly known as “junk bonds”) tend to have a higher probability that an issuer will default or fail to meet its payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate developments and negative perceptions of the junk bond market generally and may be more difficult to trade than other types of securities.

Inflation Risk: This is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the value of the Fund’s assets can decline as can the value of the Fund’s distributions. This risk is significantly greater for fixed-income securities with longer maturities.

Foreign (Non-US) Risk: Investments in securities of non-US issuers may involve more risk than those of US issuers. These securities may fluctuate more widely in price and may be more difficult to trade due to adverse market, economic, political, regulatory or other factors.

Emerging-Market Risk: Investments in emerging-market countries may have more risk because the markets are less developed and less liquid as well as being subject to increased economic, political, regulatory or other uncertainties.

DISCLOSURES AND RISKS (continued)

Currency Risk: Fluctuations in currency exchange rates may negatively affect the value of the Fund’s investments or reduce its returns.

Leverage Risk: As a result of the Fund’s use of leveraging techniques, its NAV may be more volatile because leverage tends to exaggerate the effect of changes in interest rates and any increase or decrease in the value of the Fund’s investments.

Derivatives Risk: Investments in derivatives may be difficult to price or unwind and leveraged so that small changes may produce disproportionate losses for the Fund. Derivatives, especially over-the-counter derivatives, are also subject to counterparty risk.

Management Risk: The Fund is subject to management risk because it is an actively managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected.

Mortgage-Related and/or Other Asset-Backed Securities Risk: The Fund may invest in mortgage-backed and/or other asset-backed securities, including securities backed by mortgages and assets with an international or emerging-markets origination and securities backed by non-performing loans at the time of investment. Investments in mortgage-related and other asset-backed securities are subject to certain additional risks. The value of these securities may be particularly sensitive to changes in interest rates. These risks include “extension risk”, which is the risk that, in periods of rising interest rates, issuers may delay the payment of principal, and “prepayment risk”, which is the risk that, in periods of falling interest rates, issuers may pay principal sooner than expected, exposing the Fund to a lower rate of return upon reinvestment of principal. Mortgage-backed securities offered by nongovernmental issuers and other asset-backed securities may be subject to other risks, such as higher rates of default in the mortgages or assets backing the securities or risks associated with the nature and servicing of mortgages or assets backing the securities.

As with all investments, you may lose money by investing in the Fund.

An Important Note About Historical Performance

The performance shown in this report represents past performance and does not guarantee future results. Current performance may be lower or higher than the performance information shown. All fees and expenses related to the operation of the Fund have been deducted. Performance assumes reinvestment of distributions and does not account for taxes.

PORTFOLIO SUMMARY

September 30, 2021 (unaudited)

PORTFOLIO STATISTICS

Net Assets ($mil): $1,119.6