Monster is an Indian Tamil-language fantasy comedy film, written and directed by Nelson Venkatesan and produced by Potential Studios. The film features S. J. Surya, Priya Bhavani Shankar and Karunakaran in the lead roles. Featuring music composed by Justin Prabhakaran, the film finished production in September 2018.

After Maya and Maanagaram, Monster is the third movie produced by Potential Studios, directed by Nelson Venkatesan who earlier directed Oru Naal Koothu. Justin Prabhakaran, Gokul Benoy, and V J Sabu Joseph are selected as music director, cinematographer and film editor respectively, continuing their association with the director from his previous venture. Meanwhile, Siva Sankar was selected as art director as well. Production of this film is completed and the producers have released the title animation on 1 October 2018.