(Latin: Aegidius Foscherarius) (January 27, 1512 in Bologna – December 23, 1564 in Rome) was an Italian Dominican theologian who was Bishop of Modena (1550-1564).
In 1546 he was appointed Master of the Sacred Palace (official papal theologian) by Pope Paul III, and was one of the examiners of the Spiritual Exercises of Ignatius Loyola.
He was appointed Bishop of Modena on 23 May 1550 by Pope Paul III, by arrangement with Cardinal Morone.
He assisted Francisco Foreiro and Leonardo Marini in preparing the Roman Catechism, and correcting the Missal and Breviary.
He was frugal, modest, and austere, and devoted much time and money to the poor and to the reclamation of the vicious classes.