William Claus (1765–1826) was a member of the Executive Council of Upper Canada, a colonel of the Canadian militia during the War of 1812, and the head of the Indian Department in Upper Canada from 1799 until his death.
- Position held
- Member of the Legislative Council of Upper Canada, Member of the Legislative Council of the Province of Canada
- Born
- September 8, 1765
- Died
- November 4, 1826
