Kattradhu Thamizh (transl. Learnt Tamil; previously titled Tamil M. A.) is a 2007 Indian Tamil-language psychological thriller film written and directed by Ram, who directs his debut film. Produced by Salmara Mohammad Sharief, it stars Jiiva, Anjali and Karunas. The film was released on 5 October 2007, to unanimous critical acclaim.

The film is about an ordinary young Tamil-postgraduate, who becomes a tortured victim of Chennai's gentrification, fueled by the booming IT industry, slowly losing his mental balance and becoming a psychopath. According to Ram, the movie explores what might become of a society, that undervalues the education and practice of the arts and humanities. Although the film was not commercially successful at the time of release, it has since become a cult classic.