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. Spiral Circus was first released in 1994 on cassette only. This tape was given away free to subscribers of the Transmission information service. It was then reissued on vinyl in 1997 limited to 500 copies. Both editions are deleted at the present.