Ganga Jamna, also transliterated as Ganga Jamuna or Gunga Jumna, is a 1961 Indian crime drama film, written and produced by Dilip Kumar, and directed by Nitin Bose, with dialogues written by Wajahat Mirza; Kumar later said that he also ghost-directed and edited the film. It stars Dilip Kumar with Vyjayanthimala and his real-life brother Nasir Khan in the leading roles. Set in the rural Awadh region of Northern India, the film tells the story of two impoverished brothers, Ganga and Jamna, and their poignancy and sibling rivalry on opposing sides of the law, one a dacoit criminal and the other a police officer. The film was also notable for its Technicolor production, use of the Awadhi dialect, and its rustic setting, being a defining example of the dacoit film genre. It was ranked 11th in Outlook Magazine's poll considering 25 leading Indian directors' vote for Bollywood's greatest films in 2003.

Crime films, in the broadest sense, is a film genre inspired by and analogous to the crime fiction literary genre. Films of this genre generally involve various aspects of crime and its detection. Stylistically, the genre may overlap and combine with many other genres, such as drama or gangster film, but also include comedy, and, in turn, is divided into many sub-genres, such as mystery, suspense or noir.