Patriarch John IX

Patriarch John IX may refer to:


 * John IX of Constantinople, Ecumenical Patriarch of Constantinople in 1111–1134
 * Patriarch John IX of Antioch (ruled in 1155–1159)
 * Pope John IX of Alexandria, Pope of Alexandria & Patriarch of the See of St. Mark in 1320–1327
 * The 52nd Maronite Patriarch, John IX (ruled in 1608–1633)