Onesimus
| Onesimus of Byzantium | |
|---|---|
| Bishop of Byzantium | |
| Saint Onesimus | |
| Installed | 54 AD | 
| Term ended | 68 AD | 
| Predecessor | Stachys the Apostle | 
| Successor | Polycarpus I of Byzantium | 
| Personal details | |
| Died | c. 107 AD | 
| Denomination | Early Christianity | 
| Onesimus | |
|---|---|
| Painting depicting death of Onesimus, from the Menologion of Basil II (c. 1000 AD) | |
| The Holy Apostle Onesimus Bishop of Byzantium | |
| Died | Rome (then Roman province) | 
| Venerated in | Catholic Church Eastern Orthodox Church Oriental Orthodox Church Lutheranism | 
| Feast | 15 February (formerly 16 February in the West) | 
Onesimus of Byzantium (Ancient Greek: Ὀνήσιμος, romanized: Onēsimos, meaning "useful"; died c. 107 AD, according to Catholic tradition), also called Onesimus and The Holy Apostle Onesimus in the Eastern Orthodox Church, was a slave to Philemon, a man of Christian faith. He may also be the same Onesimus named by Ignatius of Antioch (died c. 107) as bishop in Ephesus which would put Onesimus's death closer to 107. If so, Onesimus went from slave to brother to bishop.