The Greek Orthodox Church of Antioch, also known as the Antiochian Orthodox Church (, Patriarcheîon Antiocheías; , Baṭriyarkiyya Anṭākiya wa-Sāʾir al-Mashriq li'l-Rūm al-Urthūdhuks; "Roman Orthodox Patriarchate of Antioch and All the East"), is an autocephalous Greek Orthodox Church within the wider communion of Eastern Orthodox Christianity. Headed by the Greek Orthodox Patriarch of Antioch, it considers itself the successor to the Christian community founded in Antioch by the Apostles Peter and Paul.