Father Alexander Ratiu (Romanian: Rațiu; 4 May 1916 - 25 July 2002) was a Romanian-American priest of the Romanian Greek-Catholic Church. While serving in his family's country of origin, he became a political prisoner, and later, after his release, an author. Ratiu served as a pastor in both Giurtelecu Șimleului, Romania, and in Plainfield, Illinois, in the United States.