Chit Phumisak (also spelt Jit Poumisak; Thai: ???? ??????????; IPA:[t?ìt p?u?.mÃ.sà k]; born 25 September 1930; killed 5 May 1966) was a Thai author, philologist, historian, poet, songwriter and communist revolutionary.
His most influential book was The Face of Thai Feudalism (?????????????????, Chom Na Sakdina Thai), written in 1957 under the pseudonym Somsamai Srisootarapan.
Other pen names used by Chit include Kawi Kanmuang and Kawi Srisayam.