Vallavan Oruvan is a 1966 black-and-white Tamil Suspense film directed by R. Sundaram and produced by Modern Theatres. The film script was written by A. L. Narayanan. Music by Vedha assets to the movie. Jaishankar played a leading investigator's role. R. S. Manohar and Thengai Srinivasan played key supporting roles..