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- Zack Kassian, NHL hockey player currently with the Vancouver Canucks
- Jerry Kauric, former NFL and CFL football player
- Rick Kehoe, former NHL player and coach
- Tim Kerr, former NHL hockey player
- Malcolm Knight, Vice Chairman of Deutsche Bank and former General Manager of the Bank for International Settlements
- Killer Kowalski, professional wrestler and trainer
- Julie Kryk, singer-songwriter
- Tomasz Kucharzewski (1968–2008), martial artist
- Ruth Kerr, Olympian 1932 1st Windsor born to represent Canada in Olympics ( Los Angles )age 16
Read more about this topic: List Of People From Windsor, Ontario