Thulladha Manamum Thullum (transl. Even the heart that doesn't bounce, will bounce) is a 1999 Indian Tamil-language musical romantic drama film written and directed by debutant Ezhil. It stars Vijay and Simran, while Manivannan, Dhamu and Vaiyapuri among others play supporting roles. The film is produced by R. B. Choudary and has its music composed by S. A. Rajkumar and cinematography performed by R. Selva.

Thulladha Manamum Thullum was released on 29 January 1999. The film received positive reviews and became a commercial success. It was remade in Telugu as Nuvvu Vastavani, in Kannada as O Nanna Nalle, in Bengali as Sathi, and in Odia as I Love You.