Mozhi (transl. Language) is a 2007 Indian Tamil language musical romantic comedy film written and directed by Radha Mohan and produced by Prakash Raj. The film stars Prithviraj Sukumaran, Jyothika, Prakash Raj, and Swarnamalya. The film's plot is about Karthik (Prithviraj), who falls in love with a deaf and mute girl, Archana (Jyothika), but she considers him her friend and disapproves of his love. The rest of the story revolves around Archana accepting Karthik's love.

The film was launched in 2006 and shot at several locations in India and Mauritius. Vidyasagar scored the music while the lyrics were written by Vairamuthu. Mu. Kasivishwanathan handled the editing and K. V. Guhan worked as the cinematographer. The dialogues were written by Viji. The film was released on 23 February 2007 and emerged as a critical and commercial success.

Jyothika won Best Actress at Tamil Nadu State Film Awards Reportedly, she has reached the final round of National Film Award for Best Actress for her role, however she lost the award to Umashree for the Kannada film Gulabi Talkies, by one vote. The film was dubbed in Telugu as Maatarani Mounamidi in 2012 and released to positive reviews.

Mozhi was the first Tamil film receiving the fastest launch in the home video market. The producers tied up with optical disc maker Moser Baer for the release. The film was premiered in the Non prize section of 2007 Cannes Film Festival.