These events occured in 1910 in the world of hockey:
- 5 January — National Hockey Association (NHA) commences its inaugural season
- 15 January — Canadian Hockey Association disbands. Ottawa and Montreal Shamrocks join the NHA.
March — Toronto St. Michael's Majors wins the Allan Cup
15 March — Montreal Wanderers wins the NHA championship and the Stanley Cup. The club then defeats Berlin Dutchmen in a challenge. It is the fifth season in a row that Montreal Wanderers has won the Cup outright or won a Cup challenge.
December — NHA loses its Cobalt and Haileybury teams, but gains a Quebec team. The Montreal Canadiens are taken over by George Kennedy's Club Athletique Canadien after threatening legal action.