Viswasam (transl. Loyal ) is a 2019 Indian Tamil-language action drama film directed by Siva, who also co-wrote the screenplay. The film stars Ajith Kumar, Nayanthara and Jagapathi Babu. Produced by Sathya Jyothi Films, the film was officially announced on 20 November 2017 and principal photography began in May 2018.

Sivakumar Jayakumar, known professionally by his mononym Siva or also as Siruthai Siva, is an Indian film director, screenwriter, lyricist and cinematographer who works primarily in Tamil cinema industry.