Ko (transl. 'King') is a 2011 Indian Tamil-language political action thriller film directed by K. V. Anand, and written by Anand and the duo Suresh and Balakrishnan. The film stars Jiiva, Ajmal Ameer, Karthika Nair, and Piaa Bajpai in lead roles, while Prakash Raj and Kota Srinivasa Rao appear in supporting roles. The film follows Ashwin (Jiiva), a photojournalist working for Dina Anjal who covers the Tamil Nadu State Election. The core plot of the movie was reported to be based on the 2009 movie State of Play.

Ajmal Ameer is an Indian actor known for his works in Malayalam, Tamil, and Telugu language films. He has won two Filmfare Awards South for his role Anjathe (2008) and Ko (2011).