These events occured in 1911 in the world of hockey:
- March — Ottawa Hockey Club wins the National Hockey Association (NHA) championship and Stanley Cup
- 16 March — Ottawa forward Marty Walsh scores 10 goals in a 13–4 win over Port Arthur Seniors in a Stanley Cup challenge. His tally is second in Stanley Cup history to Frank McGee’s 14-goal total on 16 January 1905.
- March — Winnipeg Victorias wins the Allan Cup
13 November — NHA founding team Renfrew Creamery Kings drops out of the league and the players under contract are dispersed to other teams. Two franchises are sold to Toronto interests who intend to start in the 1911–12 season, but Toronto's new Arena Gardens is not ready for play.
7 December — upon completion of artificial ice rinks in Vancouver and Victoria, British Columbia, the new professional Pacific Coast Hockey Association (PCHA) league is created by former NHA players Frank and Lester Patrick. A bidding war for players ensues with numerous NHA players leaving to play in the PCHA.