Events in Sport
- Dec 1 NHL drops 20 minute slashing-about-the-head penalty
- Dec 6 CFL Grey Cup, Varsity Stadium, Toronto: Toronto Balmy Beach win their 2nd and final title; defeat Regina Roughriders, 11-6
- Dec 7 PGA Championship Men's Golf, Fresh Meadows CC: American based Scotsman Tommy Armour defeats Gene Sarazen 1 up in the final for the 2nd of his 3 major titles
- Dec 12 Baseball Rules Committee greatly revises the rule book, ball bouncing into stands not a HR, now a double
- Dec 13 George Sisler's career ends when Boston Braves release him
- Dec 14 NY Giants defeat Notre Dame 22-0 in a charity game
- Dec 14 National Football League Championship: Green Bay Packers (10-3-1) repeat with best record in first past the post title
Event of Interest
Dec 15 Occasional leg-spin bowler Don Bradman takes his 1st of only 2 Test cricket wickets when he traps West Indian batsman Ivan Barrow lbw for 27 in the 1st Test in Adelaide

Donald Bradman
Event of Interest
Dec 16 Golfer Bobby Jones is the first to win the James E. Sullivan Award (best US amateur athlete)

Bobby Jones
Birthdays in Sport
- Dec 4 Lorraine Chargin, American boxing promoter (Bobby Chacon, Tony "The Tiger" Lopez, Loreto Garza), born in New Haven, Connecticut (d. 2010)
- Dec 4 Harvey Kuenn, American baseball utility (AL batting champion 1959; 10 × All-Star 1953–1960²; Detroit Tigers), born in West Allis, Wisconsin (d. 1988)
- Dec 6 Wojciech Zabłocki, Polish fencer (4 x World C'ship gold team; Olympic silver team sabre 1956, 60; bronze 1964), born in Warsaw, Poland (d. 2020)
- Dec 15 Alimuddin, Pakistani cricketer (Pakistani batsman in 25 Tests 1954-62), born in Ajmer, British India (d. 2012)
- Dec 18 Bill Skowron [Moose], MLB First baseman (NY Yankees), born in Chicago, Illinois (d. 2012)
- Dec 22 Bill Jenkins, American engine builder and drag racer (Motorsports Hall of Fame of America), born in Philadelphia, Pennsylvania (d. 2012)
- Dec 25 Emmanuel Agassi, Iranian boxer and coach and father of Andre Agassi, born in Salmas, Iran