S. K. Vasanthan is a Malayalam history researcher, academic and writer from Kerala, India.

He has published several books in various genres such as essay, novel, short story, history of Kerala and translation.

S. K. Vasanthan was born on 17 November 1935, at Edappally in present-day Ernakulam district to Karunakara Menon and Thathampally Saraswathi Amma.

[1] After completing post graduate degree in Malayalam and English and Phd from the University of Kerala, he taught at Kalady Sreesankara College and Sree Sankaracharya Sanskrit University for 35 years.

Vasanthan held several positions including assistant editor at Kerala Language Institute, member of Kerala Sahitya Akademi and member of the boards of various Universities in Kerala.