Patriarch Cyril of Constantinople may refer to:
Cyril Lucaris (Patriarch Cyril I Lucaris, 1572–1638), patriarch for six terms between 1612 and 1638 Patriarch Cyril III of Constantinople, patriarch in 1652 and 1654 Patriarch Cyril V of Constantinople, patriarch in 1748–1757 Patriarch Cyril VII of Constantinople, patriarch in 1855–1860
See also Patriarch Cyril (disambiguation)