Patriarch Gregory of Constantinople

Patriarch Gregory of Constantinople may refer to:


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