Saken Seyfullin (Kazakh: Сәкен Сейфуллин) (15 October 1894 – 28 February 1939) was a pioneer of modern Kazakh literature, poet and writer, and national activist. Founder and first head of the Union of Writers of Kazakhstan, he was the author of controversial literature calling for greater independence of Kazakhs from Soviet and Russian power. He met repression and was executed in 1939. The Soviet government posthumously rehabilitated him during de-Stalinization.