The 1982 Memorial Cup was held May 8–15, 1982, at the Robert Guertin Arena in Hull, Quebec. It was the 64th annual Memorial Cup competition and determined the major junior ice hockey champion of the Canadian Hockey League (CHL). The champions of the Ontario Hockey League (OHL), Quebec Major Junior Hockey League (QMJHL) and Western Hockey League (WHL) – the Kitchener Rangers, Sherbrooke Castors and Portland Winter Hawks respectively – competed for the championship in a double round-robin tournament. The Winter Hawks became the first American-based team to compete for the trophy, while the Rangers defeated the Castors in the final to capture their first Memorial Cup championship. Sherbrooke's Sean McKenna was named tournament most valuable player.

The Ontario Hockey League is one of the three major junior ice hockey leagues which constitute the Canadian Hockey League. The league is for players aged 16–20. There are currently 20 teams in the OHL: seventeen in Ontario, two in Michigan, and one in Pennsylvania.