P. Seenivasan was an Indian politician of the Dravida Munnetra Kazhagam and Member of the Legislative Assembly Tamil Nadu. He served as the Deputy Speaker of the Tamil Nadu Legislative Assembly from 1971 to 1972. He was elected to the Tamil Nadu legislative assembly as a Dravida Munnetra Kazhagam candidate from Virudhunagar constituency and Sivakasi (State Assembly Constituency) in 1967, 1971 and 1989 elections.He defeated the King maker K. Kamaraj in the 1967 assembly elections when he contested against him in the virudhunagar constituency.