Oskar Zawisza (23 November 1878 in Jablunkov – 18 January 1933 in Těrlicko) was a Polish Catholic priest, composer and educational activist. He was son of a teacher from Jablunkov. Zawisza finished German gymnasium in Bielsko and Theological faculty in Olomouc. He was a pupil of Czech composer Josef Nešvera. Zawisza was ordained as a priest on 23 July 1902. Then he became curate in Petrovice u Karviné, Dolní Bludovice, Niemiecka Lutynia, Strumień and Cieszyn. On 1 July 1911 he became a rector in Těrlicko.