The Trois Rivieres Lions were a minor professional team formed in 1955 in Trois-Rivières, Quebec. They became a member of the Quebec Hockey League in 1955 replacing the Valleyfield Braves who had just folded. There was a gap in the city after the Quebec Junior Hockey League folded. The Lions replaced that league's Trois Rivieres Flambeaux. After the Quebec Hockey League folded in 1959, the Lions moved to the newly formed Eastern Professional Hockey League. After only one season, poor attendance forced a move to become the Kitchener-Waterloo Beavers.