Tertius of Iconium was an early Christian priest recognized for his role in the New Testament. According to the Epistle to the Romans, he served as the amanuensis for the Apostle Paul, physically writing the letter. Some traditions identify him as a bishop in Iconium who succeeded Sosipater. He is remembered as a martyr and is included in lists of the Seventy Disciples found in ancient manuscripts attributed to Hippolytus of Rome.