Oskar Czerwenka (5 July 1924 – 1 June 2000) was an Austrian operatic bass and academic teacher.

[2] Czerwenka sang 75 operatic parts, including his signature role Ochs auf Lerchenau in Der Rosenkavalier by Richard Strauss.

[4] Czerwenka took part in opera premiere performances, such as Gottfried von Einem's Der Prozeß at the 1953 Salzburg Festival, Werner Egk's Irische Legende in 1955, and a title role in Giselher Klebe's Jacobowsky und der Oberst which premiered in Hamburg in 1965 and was also shown at the Metropolitan Opera.

[5] He took part in the premiere of Iván Erőd's opera Die Seidenraupen (The Silkworms) in 1968 during the Wiener Festwochen at the Theater an der Wien.

He published several books that he authored, including his autobiography Jenseits vom Prater in 1998: Czerwenka received several honours and awards, including:[7] In 2008, the Landesmusikschule Vöcklabruck (state music school) of Upper Austria moved to the former residence of the singer and an additional new building, and was named after him: Oskar Czerwenka Landesmusikschule.