Ramkumar Ganesan (born Ramkumar Manrayar Ganesamoorthy, 12 January 1955) is an Indian film producer and actor. He is the head of Sivaji Productions, a film productions company that has produced several films, particularly featuring his father Sivaji Ganesan or his younger brother Prabhu.

Born in Chennai, Tamil Nadu, India, Ramkumar is the eldest son of Tamil actor Sivaji Ganesan and the older brother of Tamil actor Prabhu, Shanti and Thenmozhi. He graduated with a degree in business administration from Vivekananda College and began working at the production company Sivaji Productions established by his father.^[1]

Ramkumar took over Sivaji Productions after his uncle V. C. Shanmugham had died.^[2] The company is being led by Ramkumar along with his brother Prabhu.^[3] The most notable production under Ramkumar remains the blockbuster Chandramukhi in 2005. In 2009, the brothers produced the film Aasal starring Ajith Kumar.^[4] Ramkumar has also acted in a couple of scenes, playing notable supporting roles in Aruvadai Naal and My Dear Marthandan, both starring Prabhu. He appeared as one of the antagonists in director Shankar's I.^[2]

Ramkumar has been married to Kannamal. They have three sons, Dushyanth who works with Sivaji Productions and has acted in the Tamil films Success and Machi,^[5] and twins Dharshan and Rishyan.

His second marriage was to Meenakshi, Sripriya's elder sister. They have 2 sons, Vishnu and Shivaji Dev, the latter of whom is married to Suja Varunee|archive-url=https://web.archive.org/web/20120406214038/http://www.sify.com/movies/ramkumar-ganesan-s-son-sivaji-is-back-news-tamil-megkaKfgffc.doc |url-status=dead |archive-date=2012-04-06 |title=Ramkumar Ganesan's son Sivaji is back |website=Sify.com |accessdate=2018-04-h