2009 Big 12 football standings
	Conf				Overall
Team		W		L		W		L
Northern Division
#14 Nebraska x		6	–	2		10	–	4
Missouri		4	–	4		8	–	5
Kansas State		4	–	4		6	–	6
Iowa State		3	–	5		7	–	6
Colorado		2	–	6		3	–	9
Kansas		1	–	7		5	–	7
Southern Division
#2 Texas x$		8	–	0		13	–	1
Oklahoma State		6	–	2		9	–	4
#21 Texas Tech		5	–	3		9	–	4
Oklahoma		5	–	3		8	–	5
Texas A&M		3	–	5		6	–	7
Baylor		1	–	7		4	–	8
Championship: Texas 13, Nebraska 12
$ – BCS representative as conference champion x – Division champion/co-champions Rankings from AP Poll

The 2009 Dr Pepper Big 12 Championship Game was held on December 5, 2009 at Cowboys Stadium in Arlington, Texas. The divisional winners from the Big 12 Conference squared off in the 14th edition of the game. The Texas Longhorns represented the South Division and the Nebraska Cornhuskers represented the North. Texas won 13–12 on a last second field goal by placekicker Hunter Lawrence.

On the play immediately prior to Lawrence's field goal, as the game clock ticked down Texas quarterback Colt McCoy rolled far to the right, with Nebraska's Ndamukong Suh in "hot" pursuit, and threw a pass well downfield and out of bounds. The game clock ran out, which would have ended the game, with Nebraska appearing to win 12–10. However, pursuant to Rule 12-3-6, the video replay official determined that an "egregious", and therefore reviewable, error concerning the game clock had occurred and ordered the errantly elapsed one second be returned to the clock. The ESPN/ABC video feed showed that McCoy's pass hit a stadium railing out of bounds with :01 left, allowing Texas to kick the winning field goal to advance to the BCS title game.

The game was the third championship tilt between the Cornhuskers and Longhorns. Unranked Texas upset #3 Nebraska 37–27 in 1996 in St. Louis, Missouri, while #2 Nebraska beat #12 Texas 22–6 in 1999 in San Antonio, Texas. Texas is now 3–2 in the conference title game; Nebraska fell to 2–3. Texas is second in Big 12 Championship titles to Oklahoma, who own 7 conference titles.

Per Big 12 policy, Nebraska was declared the home team because the game took place in a home state of four Big 12 South teams. Designated "home" teams are 9–5 in Big 12 Championship Games. The South Division has won 6 years in a row and is 10–4 overall.

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