Patriarch Peter may refer to:
Patriarch Peter I of Alexandria, Greek Patriarch of Alexandria in 300–311
Patriarch Peter II of Alexandria, Greek Patriarch of Alexandria in 373–380
Patriarch Peter III of Alexandria, Greek Patriarch of Alexandria in 477 and 482–490
Patriarch Peter IV of Alexandria, Greek Patriarch of Alexandria in 642–651
Peter of Constantinople, Patriarch of Constantinople in 654–666
Patriarch Peter V of Alexandria, Greek Patriarch of Alexandria between the 7th and 8th centuries
Patriarch Peter VI of Alexandria, Greek Patriarch of Alexandria between the 7th and 8th centuries
Patriarch Peter VII of Alexandria, Greek Patriarch of Alexandria and all Africa in 1997–2004