Thirumathi Thamizh () is a 2013 Indian Tamil-language romantic comedy film directed by Rajakumaran. The film stars himself alongside Devayani and Keerthi Chawla with Ramesh Khanna in a supporting role. It was released on 13 April 2013.
The film began production in 2008, and is Devayani's 75th film. It was the last film of veteran actor Malaysia Vasudevan.
The music was composed by S. A. Rajkumar.
The Times of India gave the film one out of five stars and wrote that "The movie could have made for a much better watch had the director focused on the social issues it started out to discuss". A critic from Kungumam panned the screenplay.