William de Cambuslang (died 1361) was a 14th-century Scottish churchman, presumably coming from a family based at or originating from Cambuslang near Glasgow. The first clear notice of his existence comes from his papal letter of provision to the bishopric of Dunblane dated 23 October 1347; in the letter Pope Clement VI complained about the election of William being made despite an earlier papal reservation of the see; Pope Clement declared the election null and void, before himself providing William to the see directly, ordering him to be consecrated by , Bishop of Porto. The same letter said that William had previously been a canon of the cathedral chapter of Dunblane.