Æon Flux is a 2005 American science fiction action film based on the animated science fiction action television series of the same name created by Peter Chung, which aired on MTV from 1991 to 1995. It was directed by Karyn Kusama, written by Phil Hay and Matt Manfredi, and produced by Gale Anne Hurd, David Gale, Gary Lucchesi and Greg Goodman. The film was produced by MTV Films, Lakeshore Entertainment, Babelsberg Film Studio and Valhalla Motion Pictures. It stars Charlize Theron as the title character, Marton Csokas, Jonny Lee Miller, Sophie Okonedo, Pete Postlethwaite, and Frances McDormand.

The film was released on December 2, 2005, by Paramount Pictures in the United States. The film was poorly received by critics and failed at the box office, only grossed $52 million against a production budget of $55–62 million.