Nayagan (transl. Hero) is a 2008 Indian Tamil language film directed by Saravana Sakthi, produced by Chakya Celluloid, and written by Vijaykumar Reddy.

The film stars J. K. Rithesh, Ramana, Sangeetha, Keerthi Chawla, Anita Hassanandani, and Anandaraj. It was subsequently dubbed into Telugu as Ankusam with a few portions reshot. The film features guest appearances in item numbers by Anita Hassanandani and Rachana Maurya. The music was composed by Mariya Manohar

The movie released on 22 August 2008, was a direct remake of the movie Vegam, released in 2007, which itself was an uncredited remake of the 2004 American action thriller film Cellular.