Diocese of Babylon

Diocese/Archidocese/Province/Patriarchate of Babylon (the office and area) or Bishop/Archbishop/Patriarch of Babylon (the person) may refer to:


 * Babylon, Mesopotamia:
 * Abdias of Babylon, first bishop of Babylon, one of the Seventy Apostles
 * Polychronius, bishop of Babylon; July 30 (Eastern Orthodox liturgics) commemorates his martyrdom in AD 251
 * Patriarch of the Church of the East or Patriarch of Babylon
 * List of patriarchs of the Church of the East
 * Patriarchal Province of Seleucia-Ctesiphon, or the diocese of Seleucia-Ctesiphon within the province
 * Chaldean Catholic Patriarchate of Babylon, established after the 1552 schism, based in Baghdad
 * List of Chaldean Catholic patriarchs of Babylon
 * Latin Catholic Diocese of Babylon, 1632–1848; subsequently the Archdiocese of Baghdad


 * Babylon, Egypt:
 * Diocese of Babylon, at Babylon Fortress in Coptic Cairo, Egypt; an Early Christian suffragan of Leontopolis, now a titular see
 * Bishop Babylonos, title since 2009 of the hegumen of the Monastery of St George under the Greek Orthodox Patriarchate of Alexandria