Saint Ivo of Chartres, C.R.S.A. | |
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| Bishop and Confessor | |
| Born | 1040 Auteuil, County of Beauvais, Kingdom of France |
| Died | 23 December 1115 Chartres, Duchy of Normandy, Kingdom of France |
| Venerated in | Roman Catholic Church (France) |
| Beatified | 18 December 1570, Saint Peter's Basilica, Papal States, by Pope Pius V |
| Feast | 23 December |
Ivo of Chartres, Can.Reg. (also Ives, Yves, or Yvo; Latin: Ivo Carnutensis; c. 1040 – 23 December 1115), was a French canon regular and abbot who then served as the Bishop of Chartres from 1090 until his death. He was an important authority in Catholic canon law during the Investiture Crisis of that era. He is honored as a saint in the Catholic Church.
Three extensive canonical works, namely Tripartita, Decretum, and Panormia, are attributed to him. He corresponded extensively. His liturgical feast is observed on 23 December.