Ponnu Mani (Tamil: பொன்னுமணி) is a 1993 Tamil-language film directed by R. V. Udayakumar, starring Karthik, Soundarya and Sivakumar. It was a commercial success at the box office and received positive recognition. The movie completed 100 day run in Chennai, Kovai, Madurai and got similar response in other parts of Kongu region. It was the second victory for RV.Udayakumar-Karthik duo.