Ennio Filonardi (1466–1549) was an Italian bishop and Cardinal. He was born in Bauco, present-day Boville Ernica. As bishop of Veroli, from 1503 to 1538, he left an architectural mark on the cathedral. In 1538 he was bishop of Montefeltro; on April 25, 1549 he resigned as Bishop of Montefeltro in favor of his nephew Ennio Massari Filonardi. From the time of his status as close advisor to Pope Innocent VIII, he became one of the salient figures of the papal court. He acted as papal nuncio to Switzerland. He became Bishop of Albano in 1546.