Vidiyum Munn (transl. Before dawn) is a 2013 Indian Tamil thriller film directed by Balaji K. Kumar. The film stars Pooja Umashankar and Malavika Manikuttan in the lead roles, while R. Amarendran, Vinoth Kishan, and John Vijay play supporting roles. The music was composed by Girishh Gopalakrishnan with cinematography by Sivakumar Vijayan and editing by Sathyaraj Natarajan. The film is about a prostitute trying to rescue a girl from the clutches of prostitution.

Vidiyum Munn was the fifth Indian film to be released on the Auro 3D 11.1 surround sound system. The film was released by PVR Pictures on 29 November 2013 to critical acclaim but was an average grosser at the box office. The movie is an uncredited remake of the 2006 British movie London to Brighton.