Madathil Thekkepaattu Vasudevan Nair (Malayalam: മഠത്തില്‍ തെക്കെപാട്ട് വാസുദേവന്‍ നായര്‍) (born 15 July 1933), popularly known as MT, is an Indian author,screenplay writer and film director. He was born in Kudallur, a small village in the present day Palakkad District, which was under the Malabar District in the Madras Presidency of the British Raj. He is one of the most prolific and versatile writers in modern Malayalam literature. In 2005, India's third highest civilian honour Padma Bhushan was awarded to him. He was awarded the highest literary award in India- Jnanpith for his overall contribution to Malayalam literature.His novel- Randamoozham (Second Turn) is widely credited as his masterpiece.

M.T. was born in 1933 at Kudallur in the present day Palakkad district. He spent his early days in Punnayurkulam village of present day Thrissur District. He occupied and continues to occupy many important and powerful positions in various literary bodies including the presidentship of Kerala Sahitya Akademi and the chairmanship of Tunchan Memorial Trust. The Library of Congress has in its collection sixty-two books, mostly by M.T and some on him. Also, some of them are translations of his works into English. He acted as the Chief Editor of the weekly Mathrubhumi and as the editor of the Mathrubhumi periodicals. He has also served as a faculty in the Film and Television Institute,Pune. On the 2 June 1996, he was bestowed with honourary D.Lit degree by the Calicut University. He is married twice. His second wife is the dance artist Kalamandalam Saraswathi with whom he has a daughter.