William Bentinck
William Bentinck is the name of the following people:
- William Bentinck (naval officer) (1764–1813), British naval officer and colonial governor
- William Cavendish-Bentinck (1774–1839), British general and statesman
- William Cavendish-Scott-Bentinck, 5th Duke of Portland (1800–1879), British politician
- William Cavendish-Bentinck, 7th Duke of Portland (1893–1977), British politician
- William Henry Cavendish-Bentinck, 3rd Duke of Portland (1738–1809), British politician
See also:
- Wilhelm Bentinck (also William Bentinck ; 1704–1774), British-Dutch diplomat and German imperial count