Stray Dog is a 1949 Japanese film noir crime drama directed and co-written by Akira Kurosawa and starring Toshiro Mifune and Takashi Shimura. It was Kurosawa's second film of 1949 produced by the Film Art Association and released by Shintoho. It is also considered a detective movie that explores the mood of Japan during its painful postwar recovery. The film is also considered a precursor to the contemporary police procedural and buddy cop film genres, based on its premise of pairing two cops with different personalities and motivations together on a difficult case.

Akira Kurosawa was a Japanese filmmaker and painter who directed 30 films in a career spanning over five decades. He is widely regarded as one of the greatest and most influential filmmakers in the history of cinema. Kurosawa displayed a bold, dynamic style, strongly influenced by Western cinema yet distinct from it; he was involved with all aspects of film production.