The Apollo Theater is a music hall at 253 West 125th Street between Adam Clayton Powell Jr. Boulevard (Seventh Avenue) and Frederick Douglass Boulevard (Eighth Avenue) in the Harlem neighborhood of Manhattan in New York City. It is a noted venue for African-American performers, and is the home of Showtime at the Apollo, a nationally syndicated television variety show which showcased new talent, from 1987 to 2008, encompassing 1,093 episodes; the show was rebooted in 2018.

The theater, which has a capacity of 1,506, opened in 1913 as Hurtig & Seamon's Music Hall. It was designed by George Keister in the neo-Classical style. Alterations were made that year for showing movies, and it was renamed the Apollo Theater. (It was often referred to as the "125th Street Apollo" to distinguish it from the legitimate Apollo on 42nd Street). In 1924 the Minsky brothers leased the theater for burlesque shows. In 1934 it became a venue for black performers and was opened to black patrons for the first time. In 1983, both the interior and exterior of the building were designated as New York City Landmarks, and the building was added to the National Register of Historic Places. It is estimated that 1.3 million people visit the Apollo every year.