Duncan Stewart
Duncan Stewart may refer to:
- Duncan Stewart (Mississippi politician), lieutenant governor of Mississippi, 1817–1820
- Duncan Stewart (Uruguayan politician), interim president of Uruguay in 1894
- Duncan Stewart (colonial administrator), British governor of Sarawak assassinated by Rosli Dhobie in 1949
- Duncan Stewart of Ardsheal
- Duncan Alexander Stewart, Scottish-born farmer and political figure in Manitoba, Canada
- Duncan Stewart, cardiologist and CEO of the Ottawa [Health Research Institute]
- Duncan Stewart (Home and Away), character in the Australian television series Home and Away
- Duncan Stewart (footballer, born 1860), Scottish footballer
- Duncan Stewart (footballer, born 1900), Scottish footballer for Sunderland
- Duncan Stewart (golfer), Scottish golfer
- Duncan Stewart (environmentalist), Irish television presenter
- Duncan Stewart (academic), British academic administrator