Ice hockey fans in Montreal rioted to protest the suspension of Montreal Canadiens star Maurice Richard for hitting an official.

Ice hockey is a team sport played on ice skates, usually on an ice skating rink with lines and markings specific to the sport. It belongs to a family of sports called hockey. Two opposing teams use ice hockey sticks to control, advance, and shoot a vulcanized rubber hockey puck into the other team's net. Each goal is worth one point. The team with the highest score after an hour of playing time is declared the winner; ties are broken in overtime or a shootout. In a formal game, each team has six skaters on the ice at a time, barring any penalties, including a goaltender. It is a full contact game and one of the more physically demanding team sports.

The Richard Riot was a riot on March 17, 1955, in Montreal, Quebec, Canada. The riot was named after Maurice Richard, the star ice hockey player for the Montreal Canadiens of the National Hockey League (NHL). Following a violent altercation on March 13 in which Richard hit a linesman, NHL president Clarence Campbell suspended him for the remainder of the 1954–55 NHL season, including the playoffs. Montreal fans protested that the suspension was too severe; the team's largely Francophone fan base claimed the length of the suspension was motivated by Richard's French Canadian ethnicity. Outside of Montreal, however, the suspension was seen as justified and, if anything, too short.

The Montreal Canadiens, officially Club de hockey Canadien and colloquially known as the Habs, are a professional ice hockey team based in Montreal. The Canadiens compete in the National Hockey League (NHL) as a member of the Atlantic Division in the Eastern Conference. Since 1996, the team has played its home games at the Bell Centre, originally known as the Molson Centre. The Canadiens previously played at the Montreal Forum, which housed the team for seven decades and all but their first two Stanley Cup championships.