Trump Tower is a 58-floor, 664-foot-tall (202 m) mixed-use skyscraper at 721–725 Fifth Avenue, between 56th and 57th Streets, in Midtown Manhattan, New York City. Trump Tower serves as the headquarters for the Trump Organization. Additionally, it houses the penthouse condominium residence of the building's namesake and developer, U.S. president Donald Trump, who is also a businessman and real estate developer. Several members of the Trump family also live, or have resided, in the building. The tower stands on a plot where the flagship store of department-store chain Bonwit Teller was formerly located.

Der Scutt of Poor, Swanke, Hayden & Connell designed Trump Tower, and Trump and the Equitable Life Assurance Company (now the AXA Equitable Life Insurance Company) developed it. Although it is in one of Midtown Manhattan's special zoning districts, the tower was approved because it was to be built as a mixed-use development. Trump was permitted to add more stories to the tower because of the atrium on the ground floor. There were controversies during construction, including the destruction of historically important sculptures from the Bonwit Teller store; Trump's alleged underpaying of contractors; and a lawsuit that Trump filed because the tower was not tax-exempt.

Construction on the building began in 1979. The atrium, apartments, offices, and stores opened on a staggered schedule from February to November 1983. At first, there were few tenants willing to move in to the commercial and retail spaces; the residential units were sold out within months of opening. Since 2016, the tower has seen a large increase in visitation because of Trump's 2016 presidential campaign and subsequent election—both his 2016 and 2020 campaigns were headquartered in the tower.