Sadayam (transl. 'Mercifully') is a 1992 Indian Malayalam-language psychological drama written by M. T. Vasudevan Nair and directed by Sibi Malayil. It stars Mohanlal, Thilakan, Nedumudi Venu, Murali, Sreenivasan, Maathu, K. P. A. C. Lalitha, and T. G. Ravi. The film was produced and distributed by G. P. Vijayakumar of Seven Arts Films. The film score was composed by Johnson.

The story follows convict Sathyanathan (Mohanlal) who is awaiting capital punishment for the murder of two young girls and two men. Mohanlal's performance in the film is regarded as one of the finest in his career. Despite faring poorly at the box office, the film came to be appreciated years later for their cult following. M. T. Vasudevan Nair won the National Film Awards for Best Screenplay.