Billa is a 2007 Indian Tamil-language action thriller film directed by Vishnuvardhan. It is a remake of the 1980 film of the same name starring Rajnikanth, which itself is a remake of 1978 Hindi film Don, starring Amitabh Bachchan. The film stars Ajith Kumar who plays a double role as an underworld don and his friendly look-alike alongside Nayanthara and Namitha, while Prabhu, Rahman, Adithya Menon, and Santhanam playing supporting roles. It is produced by L. Suresh and Abdurrahman M while featuring a score and soundtrack by Yuvan Shankar Raja, cinematography by Nirav Shah and editing by A. Sreekar Prasad.

The shooting of Billa commenced in April 2007 and was released and distributed worldwide by Ayngaran International on 14 December 2007. The film, upon release, emerged highly successful, and was selected to be screened at the 61st Cannes Film Festival.