Kerala Sastra Sahitya Parishad (KSSP) (Malayalam: കേരള ശാസ്ത്ര സാഹിത്യ പരിഷത്ത്, meaning: Kerala Science Literature Movement) is a voluntary organisation working in the state of Kerala, India. It is claimed to be a People's Science Movement. At the time of its founding in 1962 it was a 40-member group consisting of science writers and teachers with interest in science from a social perspective. Over the past four decades it has grown into a mass movement with a membership over 60,000, distributed in more than 2,300 units spread all over Kerala.