Radhakrishnan Parthiban (earlier credited in films as Ra Parthiepan) is an Indian film actor, director, producer and writer who works mainly in Tamil cinema. He has worked in more 50 films and has directed nearly 10 films. Parthiepan is known for having directed critically acclaimed films like Pudhiya Paadhai and Housefull and for his performances in films like Bharathi Kannamma, Vetri Kodi Kattu, Azhagi, Melvilasom and Aayirathil Oruvan.

His movies Housefull (1999) and Pudhea Paadhai (1989) won the National Film Award for Best Feature Film in Tamil.