Billa is a 2009 Indian Telugu-language action thriller film directed by Meher Ramesh and produced by Gopikrishna Movies. The film stars Prabhas in a dual role alongside Krishnam Raju, Anushka Shetty, Namitha, Rahman, and Kelly Dorjee. The soundtrack was composed by Mani Sharma. It is a remake of 1978 Hindi film Don. The film follows the titular criminal's lookalike who replaces the severely wounded crime boss after a high-speed chase. Tasked with infiltrating the mafia, he embarks on a covert mission to gather intelligence on a major weapons deal.

The film began its production in October 2008 and was released and distributed worldwide by Creative Commercials. It received an A (adults only) classification from the CBFC. The film opened to positive reviews and went on to be a blockbuster at the box-office. It was praised for its action sequences, soundtrack, production design, and Prabhas's performance as a suave ruthless don.

A re-mastered 4K version was re-released in theatres on 2 October 2022, on the occasion of Prabhas's 43rd birthday.