Cosmas of Alexandria

Cosmas of Alexandria may refer to:


 * Pope Cosmas I of Alexandria, ruled in 729–730
 * Patriarch Cosmas I of Alexandria, Greek Patriarch of Alexandria in 727–768
 * Patriarch Cosmas II of Alexandria, Greek Patriarch of Alexandria in 1723–1736
 * Patriarch Cosmas III of Alexandria, Greek Patriarch of Alexandria in 1737–1746