| Church: | Church of Constantinople |
| Archbishop Of: | Ecumenical Patriarch of Constantinople |
| Term: | July 1179 – August 1183 |
| Predecessor: | Chariton of Constantinople |
| Successor: | Basil II of Constantinople |
| Birth Date: | ? |
| Birth Place: | Antioch |
| Death Date: | after 1183 |
| Death Place: | Constantinople |
Theodosius I Borradiotes (Greek, Modern (1453-);: Θεοδόσιος Βορραδιώτης; died after 1183) was the Ecumenical Patriarch of Constantinople from 1179 to 1183.[1]