Matt Dumontelle (born November 28, 1984) is a Canadian curler. He is a 2013 Tim Hortons Brier champion. When his team with skip Brad Jacobs won silver medals on 2013 World Men's Curling Championship, Matt Dumontelle was tested positive for the banned substance methandienone, an anabolic steroid, in a test following the world gold-medal game and he was disqualified on 2 years, this sanction ends on May 6, 2015. Until then he was ineligible to participate in any sport that is part of the Canadian Anti-Doping Program.