Ibrahim, the anchorite Ibrahim El-Gohary, formal prime minister of Egypt, built numerous churches Ignatius, patriarch of Antioch, martyr Irene, daughter of a pagan king Irini, the abbess of St. Mercurius Convent in Old Cairo Isaac, the 41st Pope of Alexandria Isaac of Hourin Isaac of Nineveh (i.e. Isaac the Syrian) Isaac of Scetes, the disciple of St. Apollo Isaac of Tiphre Isaac, the hermit Isaac, the priest of El-Qalali Isaiah, the prophet Isidore, friend of Sina the soldier, martyr Isidore of Scété (died c. 390) Egyptian priest and desert ascetic Isidore of Pelusium, ascetic and scholar, relative of Theophilus of Alexandria and Cyril of Alexandria, the father of confession of Moses the Black