C. Radhakrishnan (Malayalam: സി രാധാകൃഷ്ണന്) (15 February 1939) is a writer and film director in Malayalam language from Kerala state, South India. He has been honoured by both the National Literary Academy of India (1989, for Spandamapinikale Nandi) and the Kerala Literary Academy (1962, for Nizhalpadukal). He has been conferred the Vayalar Award (1990, for Munpe Parakkunna Pakshikal), Mahakavi G. Award (1993, for Verpadukalude Viralppatukal), Mooloor Award, Dr. C. P. Menon Award (for Aalochana), Achuthamenon Award (for Munpe Parakkuna Pakshikal), Abudhabi Malayali Samajam Award (1988, for Munpe Parakkunna Pakshikal), Pandit Karuppan Award, Devi Prasadam Award, Lalithambika Award (2004, for his total contribution to Malayalam literature) etc. His works have been translated into various Indian and foreign languages. He has been chosen for the Padmaprabha Puraskaram in 2007, which carries a cash prize of Rs. 55,000, ruby-studded plaque and citation.
C. Radhakrishnan is the editor of Malayalam magazine Piravi, published by the School Of Bhagavad Gita. He was the former chief editor of Madhyamam daily from August 16, 1999 to September 1, 2001.