Sosipater (Greek: Σωσίπατρος) is a person mentioned in the New Testament, in Romans 16:21. He is probably the same person as Sopater mentioned in Acts 20:4.
According to church tradition, he is known as Sosipater of Iconium, and is numbered among the Seventy Apostles. St. Sosipater's feast days are on April 28 (Slavic tradition), or 29 (Greek tradition) with St. Jason; November 10 with Ss. Erastus, Olympas, Herodian, Quartus and Tertius; and January 4 with the Seventy. Latin Tradition has it the disciple of St Paul died one 25 of June in Beroea.
Sosipater was born in Achaea. According to legend, he was Bishop in Iconium (prior to the Apostle Tertius) by his relative the Apostle Paul. With the Apostle Jason he traveled to the island of Corfu where they built a church in honor of the Apostle Stephen the Protomartyr and converted many pagans to the Christian faith. Seeing this, the governor of Corfu threw them into prison where they converted seven other prisoners to the Christian faith: Saturninus, Jakischolus, Faustianus, Januarius, Marsalius, Euphrasius and Mammius, known as the Seven Robbers. The governor had those seven put to death by boiling pitch for their faith.