Leo is a 2023 Indian Tamil-language action thriller film directed by Lokesh Kanagaraj. Produced by Seven Screen Studio, it is the third instalment in the Lokesh Cinematic Universe. Partially inspired by the film A History of Violence, the film stars Vijay in the titular role, alongside Sanjay Dutt, Arjun, Trisha, Gautham Vasudev Menon, Mysskin, Madonna Sebastian, George Maryan, Mansoor Ali Khan, Priya Anand and Mathew Thomas. In the film, Parthi, an outwardly humble man, is pursued by gangsters Antony and Harold Das who suspect him to be Antony's son Leo, previously presumed dead.