Ramanujan is a 2014 biographical film based on the life of Indian mathematician Srinivasa Ramanujan. The film, written and directed by Gnana Rajasekaran, was shot back to back in the Tamil and English languages. The film was produced by the independent Indian production house Camphor Cinema, ventured by Srivatsan Nadathur, Sushant Desai, Sharanyan Nadathur, Sindhu Rajasekaran. The cast consists of Indian and British film, stage and screen personalities. It marks the Tamil debut of Abhinay Vaddi, the grandson of veteran Tamil film actors Gemini Ganesan and Savitri, as the protagonist.

Featuring an ensemble cast of Suhasini Maniratnam, Bhama, Kevin McGowan, Abbas Mirza, Nizhalgal Ravi, Michael Lieber, amongst others in supporting roles, the film was set in the early 1900s, tracing the life of Ramanujan, and shot across five different locations, across India and England, which includes Kumbakonam, Namakkal, Chennai, London and Cambridge. The film features, music and background score composed by Ramesh Vinayagam, cinematography handled by Sunny Joseph and editing done by B. Lenin.

Ramanujan received Tamil Nadu State Film Award for Best Film in 2013, although the film had released a year later. The film was released worldwide on 11 July 2014, across India and United Kingdom. It was released simultaneously in Tamil and English languages.