Stefan Vasylovych Turchak[a] (February 28, 1938 – October 23, 1988, sometimes given as Stepan)[b] was an outstanding Ukrainian conductor, People's Artist of the USSR (1977) and a Laureate of the Shevchenko National Prize.
From 1957 Turchak studied at Lviv Conservatory (conducting class of Mykola Kolessa), which he successfully finished in 1962.
From 1963 to 1966 and 1973 to 1977 he was a chief conductor of the National Symphony Orchestra of the Ukrainian SSR, from 1967 to 1973 and from 1977 - of the Kyiv Opera and Ballet Theater.
He also paid special attention to both symphonic and operatic works of such Ukrainian composers as Levko Revutsky, Borys Lyatoshynsky, Heorhiy Maiboroda, Andriy Shtoharenko and toured abroad.
and ballets: Vitaliy Hubarenko's "Kaminnyi hospodar" (1969); "Olha" (1982) and "Prometej [Prometheus]" (1986) by Yevhen Stankovych.