Alpha Dog is a 2006 American crime drama film written and directed by Nick Cassavetes. It is based on the true story of the kidnapping and murder of Nicholas Markowitz in 2000. The film features an ensemble cast that includes Ben Foster, Shawn Hatosy, Emile Hirsch, Christopher Marquette, Sharon Stone, Justin Timberlake, Anton Yelchin, and Bruce Willis.

Alpha Dog had its world premiere at the 2006 Sundance Film Festival on January 27, 2006, and was released in the United States on January 12, 2007, by Universal Pictures. The film received mixed reviews and was a minor box office success, grossing $32 million worldwide on a budget of $9.5 million.