- Dec 1 Boston Bruins beat fellow expansion team Montreal Maroons, 2-1 at Boston Arena; first NHL game to be played in the United States
- Dec 5 Hamilton Tiger Red Green scores 5 goals to beat Tor Maple Leafs 10-5
- Dec 10 Agreement reached on permanent rotation of World Series with each league, getting games 1, 2, 6, 7 in alternating years
- Dec 17 The Hamilton Tigers and Ottawa Senators battle out the first scoreless game in NHL history; Jake Forbes (Hamilton) and Alex Connell (Ottawa) each record shutouts
Ponsford Test Debut
Dec 19 Test Cricket debut of Bill Ponsford, who scored 110 in 1st innings
- Dec 22 Babe Dye of NHL's Toronto St Patricks scores 5 goals beat Bruins 10-2
Baseball Players
Basketball Stars
Boxers
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Tennis Champions