Duet is a 1994 Indian Tamil-language romantic musical film written and directed by K. Balachander. The film stars Prabhu, Ramesh Aravind, Meenakshi Seshadri and marks the debut of Prakash Raj in Tamil cinema which he plays the antagonist. It was inspired by the 1990 French film Cyrano de Bergerac, which itself was based on the 1897 play of the same name directed by Edmond Rostand. The film revolves around two musician brothers who fall in love with the same woman. It was released on 20 May 1994.

Kailasam Balachandar was an Indian filmmaker and playwright who worked mainly in the Tamil cinema. He was well known for his distinct film-making style, and the Indian film industry knew him as a master of unconventional themes and hard-hitting contemporary subject matter. Balachander's films are well known for their portrayal of women as bold personalities and central characters. Popularly referred to as Iyakkunar Sigaram, his films are usually centred on unusual or complicated interpersonal relationships and social themes. He started his film career in 1964 as a screenwriter and graduated to a director with Neerkumizhi (1965).