Isabel de Beauchamp, Countess of Warwick, was a prominent English noblewoman born around 1340. She was the daughter of William de Beauchamp, 1st Baron Beauchamp of Warwick, and Joan de Mortimer. Isabel married Richard Beauchamp, the 13th Earl of Warwick, and became influential in the politics of her time. As Countess of Warwick, Isabel played a significant role in the management of her husband's estates and was involved in various charitable activities. She had several children, including Anne Beauchamp, who later became the mother of the powerful Warwick family during the Wars of the Roses.