Oskar Zawisza (23 November 1878 in Jablunkov – 18 January 1933 in Terlicko) 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.
On 1 July 1911 he became a rector in Terlicko.
He collaborated with Gwiazdka Cieszynska and Zaranie Slaskie magazines.
Zawisza conducted historical and ethnographic research and wrote also several books: Dzieje Strumienia (History of Strumien), Dzieje Karwiny (History of Karwina) and Spiewnik gĂłralski (Highlander's songbook); and operas Dozynki, Swieta Barbara and Czarne diamenty, symphonic poem Znad brzegĂłw Olzy and symphony Z niwy slaskiej.