Patriarch Cosmas

Patriarch Cosmas may refer to:


 * Cosmas I of Alexandria, Greek Patriarch of Alexandria in 727–768
 * Cosmas I of Constantinople, Ecumenical Patriarch in 1075–1081
 * Cosmas II of Constantinople, Ecumenical Patriarch in 1146–1147
 * Cosmas II of Alexandria, Greek Patriarch of Alexandria in 1723–1736
 * Cosmas III of Constantinople, Ecumenical Patriarch in 1714–1716
 * Cosmas III of Alexandria, Greek Patriarch of Alexandria in 1737–1746