Rudolf Gerlach-Rusnak

Rudolf Gerlach-Rusnak (; né Orest Rusnak []; later known as Gerlach; 24 July 189523 January 1960) was a German operatic and concert lyrical tenor, and a member of the Bavarian State Opera who had an international career and was known for his exceptional high register.

Life Rudolf Gerlach-Rusnak was born Orest Rusnak in near Czernowitz, Bukovina, in modern-day Ukraine. He served as an officer in the Austro-Hungarian Army during World War I and in 1917, he was captured by the Russians and caused a commotion in the POW camp, where he recited Ukrainian folk songs in the evenings. From 1941 to 1942, he was a member of Theater Bremen and then performed as a guest soloist at the Municipal Theater of Innsbruck. In 1944, he became engaged in military operations but returned to the Munich Opera in 1945.

Gerlach had a lyrical and dramatic tenor voice with an unusual timbre and an exceptionally high register.