2005 NCAA Division I-A season
George W. Bush and Mack Brown with the 2005 Texas Longhorn football team.jpg
Texas team and coach Mack Brown with President George W. Bush after winning the 2005 national championship
Number of teams119
DurationSeptember 1 – December 3
Preseason AP No. 1USC
Post-season
DurationDecember 20, 2005 –
January 4, 2006
Bowl games28
Heisman TrophyReggie Bush (running back, USC—vacated)
Bowl Championship Series
2006 Rose Bowl
SiteRose Bowl Stadium,
Pasadena, California
Champion(s)Texas
Division I-A football seasons
← 2004
2006 →

The 2005 NCAA Division I-A football season was the highest level of college football competition in the United States organized by the National Collegiate Athletic Association (NCAA). The regular season began on September 1, 2005 and ended on December 3, 2005. The postseason concluded on January 4, 2006 with the Rose Bowl, which served as the season's BCS National Championship Game.

The USC Trojans and the Texas Longhorns finished the regular season as the only undefeated teams in Division I-A and consequently met in the Rose Bowl to play for the national title. Texas defeated USC largely due to the performance of quarterback Vince Young, who gained 467 yards of total offense and ran for three touchdowns. The Longhorns won their first national championship since 1970, and their first consensus national title since 1969.

Rule changes