The 1989 Stanley Cup Final was contested between the Calgary Flames and the Montreal Canadiens, the top two teams during the 1988–89 NHL regular season. It is also the most recent time that the Finals series was played entirely in Canada, and was the second time in the decade that the Canadiens and Flames met in the Finals.
The Flames defeated the Canadiens in six games to win their first Stanley Cup.
This was the Canadiens' first defeat in a Finals since 1967.
Co-captain Lanny McDonald scored the second Flames goal in game six. This turned out to be the last goal in his Hockey Hall of Fame career because he retired during the following off-season. It was also his only Stanley Cup victory. Doug Gilmour scored two goals in the third period, including the eventual game and Cup winner to cement the victory for the Flames. Al MacInnis won the Conn Smythe Trophy as playoff MVP, and at 31 points, became the first defenceman to lead the NHL in post-season scoring. The Calgary Flames are the only visiting team to have won the Stanley Cup on the Canadiens' home ice.