Charles Duncan may refer to:

Politics and law

* Charles T. Duncan (1838–1915), American lawyer and Virginia state judge *

Charles Duncan (politician) Charles Duncan (8 June 1865 – 6 July 1933) was a British Labour Party politician and trade unionist. He was General Secretary of the Workers' Union from 1900 to 1929. He was Member of Parliament for Barrow-in-Furness from 1906 to 1918, and ...

(1865–1933), British politician and trade unionist * Charles Duncan Jr. (1926–2022), U.S. Secretary of Energy under President Jimmy Carter

Others

* Charles Duncan (captain) ( 1786–1789), British ship captain and maritime fur trader * Charles Duncan (stonemason) (1823–1891), Scottish-born Utah stonemason * Charles Duncan (artist) (1887–1970), American avant-garde painter * Charlie Duncan (1889–?), Scottish footballer * Charles Stafford Duncan (1892–1952), American painter * Charles K. Duncan (1911–1994), United States Navy admiral * Charles "Scottie" Duncan (fl. 1937–1940), American baseball player * Charles Duncan (British Army soldier) (1920–1943), British soldier posthumously awarded the George Cross {{hndis, Duncan, Charles