Patriarch Gregory

Patriarch Gregory or Catholicos Gregory may refer to:


 * Constantinople
 * Gregory of Nazianzus, Patriarch in 379–381
 * Gregory II of Constantinople, Patriarch in 1283–1289
 * Gregory III of Constantinople, Patriarch in 1443–1450
 * Gregory IV of Constantinople, Patriarch in 1623
 * Gregory V of Constantinople, Patriarch in 1797–1798, 1806–1808 and 1818–1821
 * Gregory VI of Constantinople, Patriarch in 1835–1840
 * Gregory VII of Constantinople, Patriarch in 1923–1924


 * Alexandria
 * Patriarch Gregory of Cappadocia, Patriarch in 339-345
 * Patriarch Gregory I of Alexandria, Patriarch in 1243–1263
 * Patriarch Gregory II of Alexandria, Patriarch in 1316–1354
 * Patriarch Gregory III of Alexandria, Patriarch in 1354–1366
 * Patriarch Gregory IV of Alexandria, Patriarch in 1398–1412
 * Patriarch Gregory V of Alexandria, Patriarch in 1484–1486


 * Bulgaria
 * Gregory of Bulgaria, Patriarch c. 940 – c. 960


 * Armenian Apostolic Church
 * Gregory the Illuminator (c. 257 – c. 331), patron saint and first official head of the Armenian Apostolic Church
 * Grigoris (catholicos), 4th-century catholicos of Caucasian Albania and martyr
 * Gregory II the Martyrophile (1066–1105)
 * Grigor III Pahlavuni (1093–1166), Catholicos Gregory III of Cilicia (1113–1166)
 * Gregory IV the Young (1173–1193)
 * Gregory V of Cilicia (1193–1194)
 * Gregory VI of Cilicia (1194–1203)
 * Gregory VII of Cilicia (1293–1307)
 * Gregory VIII of Cilicia (1411–1418)
 * Gregory IX of Cilicia (1439–1446)
 * Gregory X of Armenia (1443–1465)
 * Gregory XI of Armenia (1536–1545)
 * Gregory XII of Armenia (1576–1590)


 * Armenian Catholic Patriarchs of Cilicia
 * Gregory Petros V Kupelian (1788–1812)
 * Gregory Petros VI Djeranian (1815–1841)
 * Gregory Petros VIII Derasdvazadourian (1844–1866)
 * Gregorio Pietro XV Agagianian (1895-1971), Armenian Catholic Patriarch of Cilicia in 1937-1962
 * Gregory Peter XX Ghabroyan (1934–2021), Armenian Catholic Patriarch of Cilicia since 2015