Sethu is a 1999 Indian Tamil-language romantic drama film, written and directed by Bala in his debut. The film stars Vikram and Abitha. The score and soundtrack was composed by Ilaiyaraaja.

Sethu, released on 10 December 1999, initially began running at a single noon show in a suburban theatre, but gradually built up audiences through word-of-mouth publicity. The film ran over 100 days at several theatres, and became Vikram's first major breakthrough film. It won the National Film Award for Best Feature Film in Tamil, and the Best Film category at the Filmfare Awards and the Cinema Express Awards. Bala and Vikram also won several awards for their contributions to the film. The film was remade in Kannada as Huchcha, in Telugu as Seshu, and in Hindi as Tere Naam.