J. Mahendran (Tamil: ஜே. மகேந்திரன்; 25 July 1939 – 2 April 2019) was an Indian movie director, screenwriter and actor. He was active in Tamil cinema. He was best known directing and writing the movies Mullum Malarum (1978), Uthiripookkal (1979) and Nenjathai Killathe (1980). Nenjathai Killathe won the 1980 National Film Award for Best Feature Film in Tamil.
Mahendran died on 2 April 2019, at the age of 79.
- Muralidharan, Kavitha (2 April 2019). "J Mahendran, the reluctant filmmaker: What the man who gave us Rajinikanth was like". The News Minute. Retrieved 2 April 2019.