Oor Mariyadhai is a 1992 Indian Tamil-language drama film directed by K. S. Ravikumar. The film stars Sarathkumar, Sasikala, Napoleon and Anand. It revolves around Rathnavelu (Sarathkumar), who is in love with Rasathi (Sasikala) who, however, loves Kannan (Anand). When her mother discovers this fact she gets her forcefully married to Rathnavelu leading to Kannan committing suicide and his brother swearing revenge. The film, produced by R. B. Choudary, was released on 1 May 1992.

K. S. Ravikumar is an Indian film director, film producer, screenwriter and actor, primarily working in Tamil cinema.