Patriarch Paul I may refer to:
Paul I of Constantinople, Patriarch in 337–339, 341–342 and 346–350 Patriarch Paul of Alexandria, Greek Patriarch of Alexandria in 537–542 Paul I, Serbian Patriarch, Archbishop of Peć and Serbian Patriarch c. 1530 to 1541 Paul Peter Massad, Maronite Patriarch of Antioch in 1854–1890 Pavle, Serbian Patriarch, 44th Patriarch of the Serbian Orthodox Church, in 1990–2009
See also Paul I (disambiguation)