Thessalon is a town in the Canadian province of Ontario of about 1300 people. It lies on the north shore of Lake Huron just to the east of Sault Ste. Marie.
- Algoma Avalanche (Greater Metro Junior A Hockey League, 2009-2012) cease operations July 17, 2012;
- Thessalon Flyers
- (Northern Ontario Junior Hockey League, 1987-1990) folded
- (North of Superior Junior B Hockey League, 2003-2004) join Thunder Bay Junior B League
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