"Terrapin Part 1" is a song suite by the Grateful Dead. Released on their 1977 album Terrapin Station, it takes up the album's entire second side. The piece, split up into seven distinct movements, is the band's longest studio recording at sixteen minutes and twenty-three seconds long. While the Grateful Dead never performed the song live in full, the first three sections of the song became commonplace in the band's setlists. The song's lyrics were written by Robert Hunter, with the music being written by Jerry Garcia, Mickey Hart, and Bill Kreutzmann.