Thai Meethu Sathiyam is a 1978 Indian Tamil-language Curry Western film directed by R. Thyagarajan and produced by Sandow M. M. A. Chinnappa Thevar.
The film stars Rajinikanth as a shepherd who vows to kill the murderers of his parents, with Mohan Babu, Prabhakar, Suruli Rajan, Sundararajan, A. V. M. Rajan, S. A. Ashokan, Nagesh, Ambareesh, Jayamalini, and Sukumari in supporting roles.
The project was originally conceived in the late 1960s under the title "Marupiravi" with plans for M. G. Ramachandran to star, but it was shelved due to his health and legal issues. Thevar later revived it as "Thai Meethu Sathiyam," casting Rajinikanth in the lead role.
The film focuses on a shepherd's vow of revenge against the murderers of his parents and was released on 30 October 1978, a month after Chinnappa Thevar's death. It was the last film produced by Thevar to be released.
