Vallavanukku Vallavan (transl. Expert of all experts) is a 1965 Indian Tamil-language action thriller film, directed by R. Sundaram, son of T. R. Sundaram, and written by A. L. Narayanan. Music was by Vedha. It has an ensemble cast including Gemini Ganesan, Thangavelu, Manohar, Ashokan, Ramadas, Manimala and Manorama. The film was Modern Theatres' 100th film, and is a remake of the 1963 Hindi film Ustadon Ke Ustad.