Spiral Circus is the name of the first live album by British psychedelic rock/progressive rock band Porcupine Tree from their first tour ever. The tracks were recorded directly from the mixing desk in three different locations of England during December, 1993. The first half of the album was taken from the shows in the BBC and Borderline, London, and the second half from The Nag's Head, High Wycombe. Despite the fact that the track is not included, the album name is a reference to a section in the song "The Sky Moves Sideways Phase 1".