The 2006 Boise State Broncos football team represented Boise State University in the 2006 NCAA Division I FBS football season. The Broncos won the Western Athletic Conference (WAC) championship with an undefeated 12–0 regular-season record (8–0 in the WAC), their second unbeaten regular season in the past three years. This was also Boise State's fifth consecutive season with at least a share of the WAC title, and the fourth in that period in which they went unbeaten in conference play. They became only the second team from outside the Bowl Championship Series (BCS) to play in a BCS bowl game when they faced Oklahoma in the 2007 Fiesta Bowl, defeating the Sooners in a dramatic thriller.