The 2006 Idaho State Bengals football team represented Idaho State University as a member of the Big Sky Conference during the 2006 NCAA Division I FCS football season. Led by eighth-year head coach Larry Lewis, the Bengals compiled an overall record of 2–9, with a mark of 1–7 in conference play, and finished eighth in the Big Sky. The team played home games at Holt Arena in Pocatello, Idaho.

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