Yaroslav Oleksandrovych Halan (Ukrainian: Ярослав Олександрович Галан, party nickname Comrade Yaga; 27 July 1902 – 24 October 1949) was a Soviet Ukrainian writer, playwright, and publicist. A member of the Communist Party of Western Ukraine from 1924, he played a role in the 1946 Synod of Lviv that merged the Ukrainian Greek Catholic Church into the Russian Orthodox Church and was controversial for the anti-Catholicism in his writings. He was assassinated in 1949 in what the Soviet government claimed was an attack by the Ukrainian Insurgent Army, though the organisation's responsibility has si