Siren (also marketed as Siren 108 ) is a 2024 Tamil-language action thriller film directed by Antony Bhagyaraj, in his directorial debut, and produced by Sujatha Vijayakumar under Home Movie Makers. The film stars Ravi Mohan and Keerthy Suresh, alongside Anupama Parameswaran, Yogi Babu, Azhagam Perumal, Samuthirakani and Ajay.

The film was officially announced in August 2022 under the official title Siren, while, in January 2024, the title was later subtitled with 108. Principal photography commenced in September 2022. It was shot sporadically in several legs, with filming locations including Kanchipuram, Chennai, Karaikudi, Karaikal, and wrapped by mid-April 2023. The film has music composed by G. V. Prakash Kumar, background score composed by Sam C. S., cinematography handled by Selvakumar S. K. and editing by Ruben.

Siren was initially scheduled to release in December 2023, but was postponed due to unfinished post-production works. The film was released theatrically on 16 February 2024, despite getting positive reviews it was a commercial failure.