Periya Manushan () is a 1997 Indian Tamil-language comedy film directed by Guru Dhanapal. The film stars Sathyaraj and Ravali. It was released on 30 October 1997.
Ramakrishnan (Sathyaraj) has two wives. Sivagami (Ambika), his first wife, is sterile while Parvathi (Kovai Sarala), his second wife, has a daughter, Indhu (Ravali). Indhu falls in love with, Ramakrishnan's nephew, Subramani (Sathyaraj).
Ravali replaced Shruti in the lead role of the film. A song sequence with two hundred boats carrying light of thousands of lamps with actors and hundred junior artists was shot at forest of Chalakudy.
The soundtrack were composed by Deva.
Periya Manushan was released on 30 October 1997 on the eve of Diwali. The film did not perform well at the box office. Manivannan won the Cinema Express Award for Best Comedian.