William Laing
William Laing may refer to:
- William Laing (Medal of Honor), soldier in the Union Army and a Medal of Honor recipient
- William Laing (artist), Scottish/Canadian artist
- William Laing (athlete), Ghanaian athlete
- William Kirby Laing, British civil engineer
- William Roy Laing, Australian rules footballer
See also
- Bill Laing, Canadian ice hockey player
- Billy Laing, Scottish footballer