Philologus of Sinope (Greek: Φιλόλογος ό Σινώπιος) is numbered among the Seventy Disciples, and is commemorated with them on January 4. He is also commemorated on November 5 together with Ss. Patrobas, Hermas, Linus, and Gaius.
The Apostle Andrew consecrated St. Philologos (Romans 16:15) as bishop of Sinope, a city in the region of the Black Sea.
He was the father of Marcion of Sinope, heretic and founder of Marcionism.[1]