"Interstellar Overdrive" is an instrumental composition written and performed by the English rock band Pink Floyd. The song was written in 1966 and is on their 1967 debut album, The Piper at the Gates of Dawn, clocking in at almost ten minutes in length. It features long sections of free-form instrumental improvisation reflective of the group's live performances.

The Piper at the Gates of Dawn is the debut studio album by English rock band Pink Floyd, released on 4 August 1967 by EMI Columbia. It is the only Pink Floyd album made under the leadership of founder member Syd Barrett ; he wrote all but three tracks, with additional composition by members Roger Waters, Nick Mason (drums), and Richard Wright. The album followed the band's influential performances at London's UFO Club and their early chart success with the 1967 non-album singles "Arnold Layne" and "See Emily Play".