Elizabeth Cavendish may refer to:
Elizabeth Cavendish, later Elizabeth Stuart, Countess of Lennox Bess of Hardwick (1527–1608), Elizabethan courtier, married to Sir William Cavendish Elizabeth Cavendish, Duchess of Devonshire (1759–1824), wife of the fifth Duke of Devonshire Elizabeth Cavendish (lawyer), executive director of Appleseed Foundation Elizabeth Cavendish, Countess of Bridgewater (1626–1663), writer Elizabeth Cavendish, Countess of Devonshire (1619–1689) Lady Elizabeth Cavendish (1926–2018) courtier