 William de Blois (or William of Blois; died 1206) was a medieval Bishop of Lincoln. He first served in the household of Hugh du Puiset, the Bishop of Durham, then later served the household of Hugh of Avalon, Bishop of Lincoln. After Hugh's death and a two-year vacancy in the see, or bishopric, Blois was elected to succeed Hugh in 1203. Little is known about his episcopate, although 86 of his documents survive from that time period. He died in 1206 and was buried in his cathedral.
