W
- Martha Wainwright – singer/songwriter
- Rufus Wainwright – singer/songwriter
- Amanda Walsh – actress
- Dwight Walton – professional Basketball player/Canadian Olympian
- Ben Weider – co-founder of the IFBB (International Federation of BodyBuilders)
- Joe Weider – creator of the Mr. Olympia and Ms. Olympia bodybuilding contests
- Danny Wells – actor, was the bartender on The Jeffersons and Luigi in The Super Mario Brothers Super Show
- Bill Wennington – former NBA basketball player, Chicago Bulls
- Max Werner – founder, Montreal Pastry, world class pastry chef
- Trevor C. Williams – former member of the Canadian national basketball team, philanthropist
- Joseph Wiseman – actor, best known for playing Dr. Julius No in the first James Bond film Dr. No
- Cairine Wilson – first woman to serve in the Senate of Canada
- William Workman – businessman and municipal politician
- Peter Worrell – former NHL hockey player
- Aleksandra Wozniak – tennis player
- Avi Wallerstein – ophthalmologist, co-founder LASIK MD
- Karl Wolf – singer
Read more about this topic: List Of Montreal Athletes