Duke of Devonshire (disambiguation)
Duke of Devonshire is a 1694 title in the Peerage of England, held by members of the Cavendish family. Duke of Devonshire may also refer to:
 William Cavendish, 4th Duke of Devonshire (1720–1764), Prime Minister of Great Britain 1756–1757
 Duke of Devonshire Emerald, jewel acquired by the 6th Duke of Devonshire in 1831 from Emperor Pedro I of Brazil
 Duke of Devonshire (apple), fruit cultivar raised in Lancashire in 1835 and introduced in 1875