William Duncan (footballer)

William Duncan may refer to:

• William Duncan (Scottish footballer born 1865): A Scottish footballer who played as a defender for Dumbarton and Scotland in the late 19th century. He made over 100 appearances for Dumbarton and represented Scotland in two international matches.

• William Duncan (footballer born 1874): An English footballer who played as a forward in the Football League for various clubs, including Lincoln City, Chesterfield, and Grimsby Town in the late 19th and early 20th centuries.

• William Duncan (footballer born 1906): A Scottish footballer who played for Hibernian and Dundee United in the Scottish League. He also had a spell with Heart of Midlothian.