Isabella de Warenne

Isabella de Warenne (c. 1253–before 1292) was the daughter of John de Warenne, sixth Earl of Surrey, and Alice de Lusignan, half-sister of Henry III of England. In 1281 she married John Balliol, head of the powerful Balliol house and a future claimant to the Scottish throne.

The marriage linked the Balliols to the English court and produced Edward Balliol, later himself a pretender to the Scottish crown. Isabella is thought to have died before 1292, when her husband was chosen king, so she was probably never queen.