These events occured in 1955 in the world of hockey:
- Art Ross Memorial Trophy as the NHL's leading scorer during the regular season: Bernie "Boom-Boom" Geoffrion, Montreal Canadiens
- Hart Memorial Trophy for the NHL's Most Valuable Player: Ted Kennedy, Toronto Maple Leafs
- Stanley Cup – - Detroit Red Wings win 4 games to 3 over the Montreal Canadiens
- World Hockey Championship
- Men's champion: Canada's Penticton Vees win 5-0 over the USSR
- NCAA Men's Ice Hockey Championship - University of Michigan Wolverines defeat Colorado College Tigers 5-3 in Colorado Springs, CO
- 13th: Maurice Richard got a game misconduct after deliberately injuring Hal Laycoe of the Boston Bruins and knocking linesman Cliff Thompson unconscious. This earned him to be suspended for the remainder of the season and the whole lenght of the playoffs.
- 17th: National Hockey League president Clarence Campbell gets pelted with eggs, vegetables and other debris while he attended the Montreal Canadiens vs. Detroit Red Wings game in Montreal, as a response of angry fans toward the suspension of Richard. A tear gas bomb exploded in the Montreal Forum and a riot erupted in the streets of the city, causing for $500,000 of damages and resulting in the arrest of hundreds of civilians; 12 policemen and 25 civilians were injured in the event.