- Dec 1 4 sets of brothers play in one NHL game when Chicago Blackhawks beat NY Rangers, 4-1; Lynn & Muzz Patrick and Neil & Mac Colville (Rangers); Max & Doug Bentley and Bob & Bill Carse (Chicago)
- Dec 6 Gestapo arrest German resistance fighter/poster artist Helen Ernst
- Dec 6 Pietro Badoglio resigns as viceroy of Ethiopia
- Dec 7 CFL Grey Cup (Game 2), Lansdowne Park, Ottawa: Ottawa beats Toronto Balmy Beach, 12-5
- Dec 7 North Africa: British counter offensive under general O'Connor
- Dec 7 The first prototype Fairey Barracuda flew
- Dec 8 National Football League Championship, Griffith Stadium, Washington, D.C.: Chicago Bears beat Washington Redskins, 73-0; most one-sided victory in NFL history; first NFL title game broadcast on national radio
- Dec 9 British assault on Benghazi, Libya: first major allied offensive in North Africa
- Dec 9 Illegal Jewish immigrants to Haifa are deported to Mauritius
- Dec 9 South Australia all out for 47 v NSW, O'Reilly 5-11
- Dec 10 British anti-offensive in Libya (Sidi Barrani)
- Dec 10 1941 NFL Draft: Tom Harmon from University of Michigan first pick by Chicago Bears
Event of Interest
Dec 11 Russian general Georgy Zhukov warns of German assault
Georgy Zhukov
- Dec 17 British troops occupy Sollum, Egypt
Event of Interest
Dec 20 Connie Mack acquires controlling interest in the Athletics for $42,000
Connie Mack
Donald Bradman
Film Release
Dec 26 "The Philadelphia Story" film directed by George Cukor, based on the Broadway play of the same name and starring Cary Grant and Katharine Hepburn, is released (Academy Awards Best Actor 1941)
