Ramu is a 1966 Indian Tamil-language drama film directed by A. C. Tirulokchandar and written by Javar N. Seetharaman. The film stars Gemini Ganesh and K. R. Vijaya, with Ashokan, Nagesh, V. K. Ramasamy, O. A. K. Thevar and Master Rajkumar—as the title character—in supporting roles. A remake of the Hindi film Door Gagan Ki Chhaon Mein (1964), it revolves around a boy who loses his speech after witnessing his mother's death, and his father attempts to restore his son's speech.

Ramu was produced by Uma Productions, a subsidiary of AVM Productions, and predominantly shot in the village of Kaduvetti, Tamil Nadu. It was released on 10 June 1966 and became a commercial success, winning the National Film Award for Best Feature Film in Tamil and received positive reviews. The film was remade in Telugu with the same title in 1968 by the same studio and director, with Rajkumar reprising his role.