Saint William may refer to:
- Saint William of Gellone (755 â 812 or 814), second Count of Toulouse
- Saint William of Volpiano (962 â 1031), monastic reformer and architect
- Saint William Firmatus (1026 â 1103), hermit
- Saint William of Montevergine (), abbot
- Saint William of Norwich ( â 1144), apprentice tanner
- Saint William of York (), Archbishop
- Saint William of Maleval or Saint William the Great (), hermit
- Saint William of Perth, the patron saint of adopted children, killed by his adoptive son
- Saint William of ÃÂbelholt ( â 1203), also known as William of Paris or William of the Paraclete, French ecclesiastic active in Denmark
- Saint William of Donjeon ( â 1209), also known as William of Bourges, William the Confessor or William Berroyer, Archbishop of Bourges
- Saint William Laud (1573 - 1645), Archbishop of Canterbury and martyr
See also