N. P. Chellappan Nair (1903 - 1972) was a playwright and short story writer from Kerala, India. He concentrated on social comedy of manners. Of his 200 stories, thirty-one have been published in a separate volume. He received the Kerala Sahitya Akademi Award for Drama in 1961 for the play Iblisukalude Naattil.
N. P. Chaellappan Nair was born in 1903 in Mannar, a small town in what is now Alappuzha district of Indian state of Kerala. He died in 1972 at the age of 69.
N. P. Chellappan Nair wrote the screenplay and starred in K. Subrahmaniam's film Prahlada (1941). He also scripted the films, Chandrika (1950), Sasidharan (1950), Chechi (1951) and Athmasanthi (1964).