Oleksandr-Zenon Stepanovych Kurbas (Ukrainian: Олександр-Зенон Степанович Курбас; 24 February 1887 – 30 November 1937), was a Ukrainian movie and theater director. He is considered by many to be the most important Ukrainian theater director of the 20th century. He formed, together with Vsevolod Meyerhold, Yevgeny Vakhtangov and several other directors, the Soviet theater avant-garde in the 1920s and 1930s. He is one of the most prominent representatives of Ukrainian avant-garde art. He is considered to be one of the lead figures of the Executed Renaissance. He was murdered by the Soviet regime, during Stalin´s Great Terror.