Polycarpus I of Byzantium

Polycarpus I of Byzantium
Bishop of Byzantium
Installed69 AD
Term ended89 AD
PredecessorOnesimus of Byzantium
SuccessorPlutarch of Byzantium
Personal details
Died89 AD
DenominationEarly Christianity

Polycarpus I of Byzantium (Greek: Πολύκαρπος) was a bishop of Byzantium. He succeeded bishop Onesimus of Byzantium in 69 AD, and served in that office until his death in 89 AD. His last eight years of office (from 81 AD) were during Roman emperor Domitian's persecution of the Christians. His relics are deposited in the church of Argyropouli.