Events in Sport
- Dec 1 16th SEC Championship Game: #5 LSU beats #14 Tennessee, 21-14
- Dec 1 3rd ACC Championship Game: #6 Virginia Tech beats #12 Boston College, 30-16
- Dec 1 12th Big 12 Championship Game: #9 Oklahoma beats #1 Missouri, 38-17
Event of Interest
Dec 1 T. C. Williams High School’s newly constructed basketball court is named after Earl Lloyd

Earl Lloyd
- Dec 1 Davis Cup Tennis, Portland, Oregan: Bob and Mike Bryan team to give US an unassailable 3-0 lead (ends 4-1) over Russia; beat Nikolay Davydenko and Igor Andreev 7-6, 6-4, 6-2; 32nd US title
- Dec 4 Ballon d'Or: Milan's Brazilian midfielder Kaká is named best football player in the world; first year in which players from clubs outside the UEFA federation eligible for nomination
- Dec 8 73rd Heisman Trophy Award: Tim Tebow, Florida (QB)
Event of Interest
Dec 13 The Mitchell Report is publicly released listing the names of 89 Major League Baseball players that have presumably used anabolic steroids and human growth hormones. Notable players named include Roger Clemens and Miguel Tejada.

Roger Clemens
- Dec 29 American boxer Steve Cunningham defends his IBF cruiserweight title for the first time with a 12th-round TKO of local favourite Marco Huck in Bielefeld, Germany
Deaths in Sport
- Dec 1 Ken McGregor, Australian tennis player (Australian C'ship 1952), dies of stomach cancer at 78
- Dec 25 Desmond Barrick, English Cricketer (b. 1927)
- Dec 25 John Hayes, New Zealand cricket fast bowler (15 Tests, 30 wickets), dies at 80
- Dec 26 Stu Nahan, American Sportscaster (b. 1926)
- Dec 29 Phil O'Donnell, Scottish footballer (b. 1972)
- Dec 31 Tommy Dickson, British footballer (b. 1929)
- Dec 31 Tony Elliott, American football player (b. 1959)