Suicide Club, known in Japan as Suicide Circle (自殺サークル, Jisatsu Sākuru), is a 2001 Japanese independent satirical 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.

Suicide Club gained a considerable amount of notoriety in film festivals around the world for its controversial, transgressive subject matter and overall gruesome presentation. It developed a significant cult following over the years, and won the Jury Prize for "Most Ground-Breaking Film" at the 2003 Fantasia Film Festival.