- Jan 1 75th Orange Bowl: #21 Virginia Tech beats #12 Cincinnati, 20-7
- Jan 1 95th Rose Bowl: #5 Southern California beats #6 Penn State, 38-24
- Jan 2 75th Sugar Bowl: #6 Utah beats #4 Alabama, 31-17
- Jan 4 Phil Taylor, with a 7–1 victory in the final over Dutchman Raymond van Barneveld wins his 12th PDC World Darts title, his 14th in all; his 110.94 average remains a record for the PDC World Darts Championship final
- Jan 5 38th Fiesta Bowl: #3 Texas beats #10 Ohio State, 24-21
- Jan 8 College Football, 11th BCS National Championship, Dolphin Stadium, Miami Gardens: #2 Florida beats #1 Oklahoma, 24-14
Hopman Cup
Jan 9 Hopman Cup Tennis, Perth: Dominik Hrbatý beats Russia's Marat Safin 6-7, 7-5, 7-6 for an unassailable 2-0 lead, and Slovakia's 3rd title
Ronaldo Player of the Year
Jan 12 Cristiano Ronaldo is awarded 2008 FIFA World Player of the Year for the first time at a ceremony in Zurich
- Jan 18 AFC Championship, Heinz Field, Pittsburgh: Pittsburgh Steelers beat Baltimore Ravens, 23-14
- Jan 18 NFC Championship, University of Phoenix Stadium: Arizona Cardinals beat Philadelphia Eagles, 32-25
- Jan 25 57th NHL All-Star Game, Bell Centre, Montreal, Quebec: East beats West, 12-11, SO; MVP: Alexei Kovalev, Montreal Canadiens, RW
Williams' 10th Grand Slam
Jan 31 Australian Open Women's Tennis: Serena Williams wins 10th Grand Slam singles title; outclasses Dinara Safina of Russia 6-0, 6-3
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions