| Church: | Church of Constantinople |
| Archbishop Of: | Ecumenical Patriarch of Constantinople |
| Term: | March 1596 – August 1596 |
| Predecessor: | Matthew II of Constantinople |
| Successor: | Theophanes I Karykes |
| Birth Date: | unknown |
| Death Date: | after 1596 |
Gabriel I (Greek, Modern (1453-);: Γαβριήλ; died after 1596) was Ecumenical Patriarch of Constantinople from March to August 1596. He was previously bishop of Thessaloniki.[1]