The Condé Nast Building, officially Four Times Square, is a modern skyscraper in Times Square in Midtown Manhattan. Located on Broadway between 42nd Street and 43rd, the structure was finished in 1999. The building stretches 48 stories to 809 ft (247 m) making it the 10th tallest building in New York City and the 38th tallest in the United States. The major office space tenants are magazine publishing company Condé Nast Publications and the law firm of Skadden, Arps, Slate, Meagher & Flom LLP. Major retail tenants include ESPN Zone and Duane Reade.

Four Times Square is owned by The Durst Organization . The architects were Fox & Fowle . The building contains 1.6 million square feet (150,000 m²) of floor space.

NASDAQ MarketSite at the bottom of the Condé Nast Building (Times Square, New York City) at night

NASDAQ's MarketSite is located at the northwest corner of the building. It is a seven-story cylindrical tower with a high-tech electronic display, providing market quotes, financial news and advertisements. The ground floor of the MarketSite contains a television studio with a wall of monitors and an arc of windows looking out onto Times Square.

During 2002 and 2003, the existing radio antenna, built for Clear Channel Communications as a backup transmitter site for its four FM stations, was removed and replaced with a 300-foot (91 m) mast to support television and radio broadcasters who were displaced by the destruction of the World Trade Center.

• Fifty tallest buildings in New York