Autocephaly (ɔːtəˈsɛfəli; from αὐτοκεφαλία, meaning "property of being self-headed") is the status of a hierarchical Christian church whose head bishop does not report to any higher-ranking bishop. The term is primarily used in Eastern Orthodox and Oriental Orthodox churches. The status has been compared with that of the churches (provinces) within the Anglican Communion.
In the first centuries of the history of the Christian church, the autocephalous status of a local church was promulgated by canons of the ecumenical councils. There developed the pentarchy, i.e., a model of ecclesiastical organization where the universal Church was governed by the primates (patriarchs) of the five major episcopal sees of the Roman Empire: Rome, Constantinople, Alexandria, Antioch, and Jerusalem. The independent (autocephalous) position of the Church of Cyprus by ancient custom was recognized against the claims of the Patriarch of Antioch, at the Council of Ephesus (431); it is unclear whether the Church of Cyprus had always been independent or was once part of the Church of Antioch. When the Patriarch of Antioch claimed the Church of Cyprus was under its jurisdiction, the Cypriot clergy denounced this before the Council of Ephesus. The Council ratified the autocephaly of the Church of Cyprus by a resolution which conditionally states: "If, as it is asserted in memorials and orally by the religious men who have come before the Council - it has not been a continuous ancient custom for the bishop of Antioch to hold ordinations in Cyprus, - the prelates of Cyprus shall enjoy, free from molestation and violence, their right to perform by themselves the ordination of bishops [for their island]". After the Council of Ephesus, the Church of Antioch never again claimed that Cyprus was under its jurisdiction. The Church of Cyprus has since been governed by the Archbishop of Cyprus, who is not subject to any higher ecclesiastical authority.