Michael Madana Kama Rajan is a 1990 Indian Tamil-language comedy film directed by Singeetam Srinivasa Rao and written by Kamal Haasan, with Crazy Mohan penning the dialogues. The film stars Haasan in four roles alongside Khushbu, Urvasi and Rupini while Manorama, Delhi Ganesh, Nassar, Vennira Aadai Moorthy, S. N. Lakshmi, Jayabharathi, R. N. Jayagopal, Nagesh, Praveen Kumar, Santhana Bharathi and R. S. Shivaji play supporting roles. It revolves around quadruplets who get separated at birth and cross paths as adults.

Panchu Arunachalam obtained the rights to adapt a Pakistani film written by Kader Kashmiri. Despite retaining that film's core premise of quadruplets, Rao, Haasan and Mohan created an otherwise entirely new story. The film was produced by Arunachalam's wife Meena, photographed primarily by B. C. Gowrishankar and edited by D. Vasu.

Michael Madana Kama Rajan was released on 17 October 1990, Diwali day. The film was commercially successful, running for 175 days, thereby becoming a silver jubilee film.