William Devereux (disambiguation)

William Devereux or William d'Évreux may refer to:

• William Devereux (died after 1110), Anglo-Norman nobleman
• William Devereux (1219–1265), Marcher Lord
• William Devereux (died 1376/7), knight in Herefordshire
• William Devereux, Baron Devereux of Lyonshall (died 1314), Marcher Lord
• William Devereux of Frome (died 1336), knight
• William Devereux of Frome (1314–1384), member of Parliament
• William, Count of Évreux (died 1118), Norman aristocrat
• William d'Evreux, son of Archbishop Robert II of Rouen, father of Judith, Countess of Sicily, and uncle of the above