- 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 3 Devastating winter storms cause Chehalis River to flood many cities in Lewis County, Washington, closing 20-mile portion of Interstate 5 for several days, resulting in at least eight deaths and billions of dollars of damage
- 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 5 Westroads Mall massacre: A gunman opens fire with a semi-automatic rifle at an Omaha, Nebraska mall, killing eight people before taking his own life.
- Dec 7 The Hebei Spirit oil spill began in South Korea after a crane barge being towed by tug collided with the very large crude carrier, Hebei Spirit.
- Dec 8 73rd Heisman Trophy Award: Tim Tebow, Florida (QB)
- Dec 11 Two car bombs go off at the Constitutional Court building in Algiers and the United Nations office. An estimated 45 people are killed in the bombings.
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
Event of Interest
Dec 20 Her Majesty Queen Elizabeth II becomes the oldest ever monarch of the United Kingdom, surpassing Queen Victoria, who lived for 81 years, 7 months and 29 days.

Elizabeth II
Event of Interest
Dec 20 The painting Portrait of Suzanne Bloch (1904), by the Spanish artist Pablo Picasso, was stolen from the São Paulo Museum of Art, along with O Lavrador de Café, by the major Brazilian modernist painter Candido Portinari.

Pablo Picasso
- Dec 21 The Schengen Agreement area increases to include 9 European Union member states; Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia on land and sea borders.
Assassination
Dec 27 Former Pakistani Prime Minister Benazir Bhutto is assassinated by a suicide bomber in Rawalpindi

Benazir Bhutto
- Dec 28 Nepal declared a federal democratic Republic by interim parliament, abolishing the monarchy.
- 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
- Dec 31 Bocaue Fire. Seven people injured when a fire razed several fireworks stores in the Municipality of Bocaue, Bulacan, Philippines.
- Dec 31 The Massive Big Dig construction project in Boston, Massachusetts ends.