Czesław Sokolowski (July 9, 1877, in Warsaw – November 11, 1951, in Michalin) was a Polish Catholic priest, theologian, academic, and Nazi collaborator. He served as rector of the Catholic University of Lublin from 1924–1925, and of the Faculty of Catholic Theology at the University of Warsaw. He was auxiliary bishop of Siedlce from 1919 to 1940, titular bishop of Pentacomia and apostolic administrator of the diocese of Siedlce from 1940–1946. After World War II, he was one of 4 bishops convicted as a Nazi collaborator for striking a deal with the Nazi occupation forces. He was sentenced to de