Sudhakar P. Nair, (14 January 1956 – 17 July 2020) popularly known as Sudhakar Mangalodayam, was an Indian writer of Malayalam literature and a story and screenwriter in Malayalam cinema. He was known for his popular novels as well as for the screenplay of Njan Ekananu, a 1982 Malayalam language film. He was the author of over 50 novels and wrote the story for films viz. Kariyilakkattu Pole, Nandini Oppol and Vasantha Sena.