Stepan Ilkovych Khmara (Ukrainian: Степа́н І́лькович Хма́ра; 12 October 1937 – 21 February 2024) was a Ukrainian doctor, Soviet dissident and politician. As a student of the Lviv State Medical Institute Khmara was involved in the underground Samizdat-movement that published Soviet Union's banned literature. In 1980 the KGB arrested Khmara and he was sentenced to 7 years of imprisonment in strict regime camps and 5 years of exile for "Ukrainian nationalist activities". In 1987 he returned to Ukraine and in 1988 became one of the leaders of the Ukrainian Helsinki Group. In April 1990 this organi