The 2021 Big 12 Championship Game was a college football game played on December 4, 2021, at AT&T Stadium in Arlington, Texas. It was the 20th edition of the Big 12 Championship Game, and determined the champion of the Big 12 Conference for the 2021 season. The game began at 11:00 a.m. CST and aired on ABC. The game featured the conference's regular season champions, the Oklahoma State Cowboys, and the runners-up, the Baylor Bears. Sponsored by soft drink company Keurig Dr Pepper through its flagship Dr Pepper brand, the game was officially known as the Dr Pepper Big 12 Championship Game.