|Full name||William Stewart Chalmers|
|Date of birth||5 March 1907|
|Place of birth||Glasgow, Scotland|
|Height||5 ft 8 in (1.73 m)|
|Playing position||Inside forward|
|1929–1932||Heart of Midlothian|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
William Stewart Chalmers (born 5 March 1907 in Glasgow, Scotland) was a Scottish football player who played for Queens Park, Heart of Midlothian, Manchester United, Dunfermline Athletic and the Scottish national team.
Chalmers was born and grew up in the southern Glasgow suburb of Mount Florida, in the vicinity of Hampden Park. He joined local side Queens Park and played five seasons with them while he completed his studies. He turned professional in 1929, when he joined Edinburgh side Hearts. He moved to Manchester United in September 1932 then returned to Scotland with Dunfermline in 1934, where he finished his playing career.
Chalmers played once for the Scottish national football team, against Ireland at Windsor Park in front of 30,000 people. The game ended 7-3 to Scotland. He was one of the last player to be capped by the full national side while still an amateur.
Chalmers was a trained chartered accountant and continued in this profession after his playing retirement.