| Sedecion of Byzantium | |
| Patriarch Of: | Bishop of Byzantium |
| Enthroned: | 105 |
| Ended: | 114 |
| Death Date: | 114 |
| Religion: | Early Christianity |
Sedecion (Greek: Σεδεκίων; died 114) was a bishop of Byzantium. He succeeded Bishop Plutarch in 105, and served in that office for nine years until 114. He was in office during Emperor Trajan's persecution of the Christians.[1]