Open Season is a 2006 American animated adventure comedy film directed by Roger Allers and Jill Culton and co-directed by Anthony Stacchi (in Culton and Stacchi's directorial debuts), from a screenplay by Nat Mauldin and the writing team of Steve Bencich and Ron J. Friedman, and a screen story by Culton and Stacchi, based on an original idea by Steve Moore and John B. Carls. Produced by Sony Pictures Animation (as the first film from the company) and Columbia Pictures, the film stars the voices of Martin Lawrence, Ashton Kutcher, Gary Sinise, and Debra Messing. Its plot follows Boog, a domesticated grizzly bear, who is let go into the woods, and teams up with a one-antlered mule deer named Elliot to return to his old home before open season starts.

Open Season was released in theaters in the United States by Sony Pictures Releasing on September 29, 2006. It has also been released in the IMAX 3D format. Despite receiving mixed reviews from both film critics and audiences, it was a box office success, earning $200.8 million on an $85 million budget. A video game for the film was released on multiple platforms. The film was followed by two direct-to-video sequels and one direct-to-video prequel: Open Season 2 (2008), Open Season 3 (2010), and Open Season: Scared Silly (2015). A 2D animated series Open Season: Call of Nature was released in 2023.