Mercury Rising is a 1998 American action thriller film starring Bruce Willis and Alec Baldwin. Directed by Harold Becker, the film is based on Ryne Douglas Pearson's 1996 novel originally published as Simple Simon, which was the working title of the film. Willis plays Art Jeffries, an undercover FBI agent who protects a nine-year-old autistic boy, Simon Lynch (played by Miko Hughes), who is targeted by government assassins after he cracks a top secret government code.

Mercury Rising was released on April 3, 1998 to mostly negative reviews from critics and grossed $93 million at the box office.