Perarasu is a 2006 Indian Tamil-language vigilante action film directed by Udhayan. The film stars Vijayakanth in the main dual lead role with Debina Bonnerjee, Prakash Raj, Sarath Babu, Anandaraj and Pandiarajan. The music is composed by Pravin Mani. The film follows the pattern of southern masala movie with good-cop-versus-bad-guy story. The film released on 14 September 2006 and became an average grosser.

Perarasu is similar to several earlier films of Vijayakanth, like Vallarasu (2000) and Pulan Visaranai (1990). He plays a dual role of identical twins as a law enforcer and a vigilante.