Grzegorz Paweł z Brzezin (English: Gregory Paul of Brzeziny, Latin: Gregorius Paulus Brzezinensis) (1525–1591), was a Socinian (Unitarian) writer and theologian, one of the principal creators and propagators of radical wing of the Polish Brethren, and author of several of the first theological works in Polish, which helped to the development of literary Polish.[1]