William Cavendish
William Cavendish is the name of:
- William Cavendish, 1st Duke of Newcastle ( 1592-1676 ), British general and politician
- William Cavendish, 1st Earl of Devonshire († 1626 )
- William Cavendish, 2nd Earl of Devonshire ( 1591-1628 )
- William Cavendish, 3rd Earl of Devonshire ( 1617-1684 )
- William Cavendish, 1st Duke of Devonshire ( 1640-1707 )
- William Cavendish, 2nd Duke of Devonshire ( 1673-1729 )
- William Cavendish, 3rd Duke of Devonshire ( 1698-1755 )
- William Cavendish, 4th Duke of Devonshire ( 1720-1764 ), British politician
- William Cavendish, 5th Duke of Devonshire ( 1748-1811 ), British nobleman
- William Cavendish, 6th Duke of Devonshire ( 1790-1858 )
- William Cavendish, 7th Duke of Devonshire ( 1808-1891 )
- William Cavendish, Marquess of Hartington (1917-1944), British nobleman
- William Cavendish - Bentinck (1774-1839), British general and statesman
- William Cavendish - Bentinck, 6th Duke of Portland ( 1857-1943 ), British politician
- William Cavendish - Bentinck, 7th Duke of Portland ( 1893-1977 ), British politician ( Conservative Party )
- William Cavendish -Scott - Bentinck, 5th Duke of Portland ( 1800-1879 ), British aristocrat
- William Henry Cavendish Bentinck, 3rd Duke of Portland ( 1738-1809 ), British politician
- Disambiguation