S. Guptan Nair (1919 – 2006) was an Indian scholar, academic, critic and writer of Malayalam literature. Known for his literary works as well as for his oratorical skills, Nair was a prolific writer with over 35 books to his credit. He was a distinguished fellow of the Kerala Sahitya Akademi and a recipient of several honours including Kendra Sahitya Academy Award, Kerala Sahitya Akademi Award, Vayalar Award, Vallathol Award and Ezhuthachan Puraskaram, the last one being the highest literary award of the Government of Kerala.