Sarkis Hovhannesi Kasyan or Kasian (Qosyan, Armenian: Սարգիս Հովհաննեսի Կա��յան (Քոսեան), January 28 [O.S. January 16], 1876, Shusha - 1937) was a Soviet Armenian statesman, politician and journalist.
He was arrested and later shot in 1937 during the Great Purge. He was posthumously rehabilitated.
Kasyan graduated from Leipzig commercial institute and Berlin University in 1904. PhD on commercial and philosophical sciences. He was a member of the Bolshevik faction of the Russian Social Democratic Labour Party from 1905. One of the founders of Armenian Bolshevik press in 1905, the leader of Tbilisi communist party organization in 1912–14. In 1919-20 - chairman of Russian Communist (Bolshevik) Party Armenian committee. Since the November, 1920 - a member of Armenian Communist Party Central Committee and chairman of the Revolutionary Committee of Armenia, signed the declaration of Sovetization of Armenia. On December 2, 1920 V.I. Lenin sent him a telegram welcoming the establishment of Soviet Armenia.
In 1927-31 he was the chairman of the All-Caucasian Central Executive Committee, in 1928-30 - also the chairman of the All-Armenian Central Executive Committee. He was elected a member of the All-Union Central Executive Committee.
- Sarkis Kasyan, 1967, 10 min., dir. R. Frangulyan