Walter de Coutances (died 16 November 1207) was a medieval Anglo-Norman bishop of Lincoln and archbishop of Rouen. He began his royal service in the government of Henry II, serving as a vice-chancellor. He also accumulated a number of ecclesiastical offices, becoming successively canon of Rouen Cathedral, treasurer of Rouen, and archdeacon of Oxford. King Henry sent him on a number of diplomatic missions and finally rewarded him with the bishopric of Lincoln in 1183. He did not remain there long, for he was translated to Rouen in late 1184.