Sethu is a 1999 Indian Tamil romantic tragedy film written and directed by debutant Bala. The film stars Vikram and Abitha in the lead roles with Sivakumar and Sriman in other pivotal roles. The film's score and soundtrack were composed by Ilaiyaraaja.
The film opened in December 1999 at a single suburban theatre but later became a popular commercial success. Sethu won the National Film Award for Best Feature Film in Tamil and secured wins in the Best Film category at the Filmfare Awards and the Cinema Express Awards, while Bala and Vikram won several awards for their contributions to the film.