William Walcher, Bishop of Durham
William Walcher (died 14 May 1080) was the bishop of Durham from 1071, a Lotharingian and the first Prince-bishop (appointed by the King, not the Pope).

He was the first non-Englishman to hold that see and an appointee of William the Conqueror following the Harrying of the North. He was murdered in 1080, which led William to send an army into Northumbria to harry the region again.