Patriarch John of Constantinople may refer to:
Patriarch John I of Constantinople, Archbishop in 398–404 Patriarch John II of Constantinople, Ecumenical Patriarch in 518–520 Patriarch John III of Constantinople, Ecumenical Patriarch in 565–577 Patriarch John IV of Constantinople, Ecumenical Patriarch in 582–595 Patriarch John V of Constantinople, Ecumenical Patriarch in 669–675 Patriarch John VI of Constantinople, Ecumenical Patriarch in 712–715 Patriarch John VII of Constantinople, Ecumenical Patriarch in 837–843 Patriarch John VIII of Constantinople, Ecumenical Patriarch in 1064–1075 Patriarch John IX of Constantinople, Ecumenical Patriarch in 1111–1134 Patriarch John X of Constantinople, Ecumenical Patriarch in 1198–1206 Patriarch John XI of Constantinople, Ecumenical Patriarch in 1275–1282 Patriarch John XII of Constantinople, Ecumenical Patriarch in 1294–1303 Patriarch John XIII of Constantinople, Ecumenical Patriarch in 1315–1320 Patriarch John XIV of Constantinople, Ecumenical Patriarch in 1334–1347