Jalsa (transl. Fun) is a 2008 Indian Telugu-language action comedy film written and directed by Trivikram Srinivas and produced by Allu Aravind, under the Geetha Arts banner. The film stars Pawan Kalyan, Ileana, Parvati Melton and Kamalinee Mukerji, while Mukesh Rishi, Prakash Raj, Brahmanandam, Ali, and Sunil play supporting roles. The soundtrack of the film was composed by Devi Sri Prasad.

Released on 1 April 2008, Jalsa set multiple box office records on its opening day, achieving the highest first-day collection in Telugu cinema history and the highest for any South Indian film in a single state. It emerged as a blockbuster, becoming the highest-grossing Telugu film of the year, and was praised for its lead performances, music, humour, and witty dialogues.

The marketing of the film included the release of an action mobile video game developed by RZ2, a Goa-based firm. Owing to the film's popularity and cult status, it was re-released in 2022 and became the highest grossing Telugu re-release of all time until surpassed by another Pawan Kalyan film Kushi.