| Type: | Pope |
| Honorific-Prefix: | Saint |
| Cosmas II of Alexandria | |
| Pope of Alexandria and Patriarch of the See of St. Mark | |
| Enthroned: | 851 |
| Ended: | 30 November 858 |
| Predecessor: | Michael II |
| Successor: | Shenouda I |
| Birth Place: | Samanoud, Egypt |
| Death Date: | 30 November 858 |
| Buried: | Church of St. Bartholomew, Danush, Egypt |
| Nationality: | Egyptian |
| Religion: | Coptic Orthodox Christian |
| Residence: | Saint Mark's Church |
| Feast Day: | 30 November (21 Hathor in the Coptic calendar) |
Pope Cosmas II of Alexandria was the Coptic Pope of Alexandria and Patriarch of the See of St. Mark from the years (851–858).[1]