2006 NCAA Division I FBS football season

The 2006 NCAA Division I FBS 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 August 31, 2006, and ended on December 2, 2006. The postseason concluded on January 8, 2007, with the BCS National Championship Game in Glendale, Arizona, where the No. 2 Florida Gators defeated the No. 1 Ohio State Buckeyes by a score of 41–14 to win the national title.

The Boise State Broncos were the year's only undefeated team in both levels of Division I football after defeating Oklahoma in the Fiesta Bowl.