The Archbishopric of Athens (Greek: Ιερά Αρχιεπισκοπή Αθηνών) is a Greek Orthodox archiepiscopal see based in the city of Athens, Greece. It is the senior see of Greece, and the seat of the autocephalous Church of Greece. Its incumbent (since 2008) is Ieronymos II of Athens. As the head of the Church of Greece, the holder is styled Archbishop of Athens and All Greece (Αρχιεπίσκοπος Αθηνών και πάσης Ελλάδος).
The Church of Greece (Greek: Ἐκκλησία τῆς Ἑλλάδος, romanized: Ekklēsía tē̂s Helládos, IPA: [ekliˈsi.a tis eˈlaðos]), part of the wider Greek Orthodox Church, is one of the autocephalous churches which make up the communion of Eastern Orthodox Christianity. Its canonical territory is confined to the borders of Greece prior to the Balkan Wars of 1912–1913 ("Old Greece"), with the rest of Greece (the "New Lands", Crete, and the Dodecanese) being subject to the jurisdiction of the Ecumenical Patriarchate of Constantinople. However, most of the dioceses of the Metropolises of the New Lands are de facto administered as part of the Church of Greece for practical reasons, under an agreement between the churches of Athens and Constantinople. The primate of the Church of Greece is the archbishop of Athens and All Greece.
Ieronymos II (Greek: Ιερώνυμος B’, romanized: Ierōnymos II, pronounced [ieˈronimos]; born 30 March 1938) is the Archbishop of Athens and All Greece and as such the primate of the Autocephalous Orthodox Church of Greece. He was elected on 7 February 2008.
Ieronymos served as Protosyncellus of the Metropolis of Thebes and Livadeia, abbot of the monasteries of the Transfiguration of Sagmata and Hosios Loukas, and Secretary, later Archsecretary, of the Holy Synod of the Church of Greece. In 1981 he was elected Metropolitan Bishop of Thebes and Levadeia. He published two major textbooks: "Medieval Monuments of Euboea" (1970), and "Christian Boeotia" (2006).