Patriarch Nicholas of Constantinople

Patriarch Nicholas of Alexandria may refer to:


 * Nicholas I of Constantinople, Ecumenical Patriarch in 901–907 and 912–925
 * Nicholas II of Constantinople, Ecumenical Patriarch in 984–996
 * Nicholas III of Constantinople, Ecumenical Patriarch in 1084–1111
 * Nicholas IV of Constantinople, Ecumenical Patriarch in 1147–1151