Eastern Orthodox Church:

Armenian Apostolic Church - serving the Armenian community [1].

Oriental Orthodox Church:

The main "Orthodox" churches in Greece are as follows:

Patriarchates Ecumenical Patriarchate of Constantinople | Patriarchate of Alexandria | Patriarchate of Antioch | Patriarchate of Jerusalem Autocephalous and Autonomous churches Church of Greece | Cypriot Orthodox Church | Albanian Orthodox Church | Orthodox Church of Mount Sinai

Various Greek Old Calendarist jurisdictions.

Ecumenical Patriarchate of Constantinople - the dioceses of Crete and the Dodecanese, and Mount Athos are under the direct jurisdiction of the Patriarchate of Constantinople. 30 dioceses in northern Greece and in the major islands in the north and northeast Aegean are nominally under the jurisdiction of the Ecumenical Patriarchate of Constantinople, however are administered as part of the Church of Greece.

¹ Entirely in Southwest Asia; included here because of cultural, political and historical association with Europe. ² Partially or entirely in Asia, depending on the definition of the border between Europe and Asia. ³ Mostly in Asia. ⁴ Entirely in the African Plate, included here because of cultural, political and historical association with Europe. ⁵ Only recognised by Turkey.