Suicide Club, known in Japan as Suicide Circle , is a 2001 Japanese independent horror film written and directed by Sion Sono. The film explores a wave of seemingly unconnected suicides that strikes Japan and the efforts of the police to determine the reasons behind the strange behavior.

Sion Sono is a Japanese filmmaker, author, and poet. Best known on the festival circuit for the film Love Exposure (2008), he has been called "the most subversive filmmaker working in Japanese cinema today", a "stakhanovist filmmaker" with an "idiosyncratic" career.