Asuran (transl. Demon) is a 2019 Indian Tamil-language period action drama film directed by Vetrimaaran and produced by Kalaipuli S. Thanu. It is based on the novel Vekkai (transl. Heat) by Poomani. The film stars Dhanush, along with Manju Warrier (in her Tamil debut), Ken Karunas, and Teejay Arunasalam. G. V. Prakash Kumar composed the film's music. Cinematography was handled by Velraj, with editing by R. Ramar.

Asuran was released in theatres on 4 October 2019. The film was a commercial success at the box office. The film won two awards at the 67th National Film Awards—Best Feature Film in Tamil and Best Actor (Dhanush). It was one among the ten Indian films to be screened at the 78th Golden Globe Awards (2021) under the Best Foreign Film category. It was also screened at the 51st International Film Festival of India in the Indian Panorama section. The film was remade in Telugu as Narappa (2021).