The 1984 Boise State Broncos football team represented Boise State University as a member of Big Sky Conference during the 1984 NCAA Division I-AA football season.

Led by second-year head coach Lyle Setencich, the Broncos compiled an overall record of 6–5 with a mark of 4–3 in conference play, placing in a three-way tie for third in the Big Sky.

Boise State played home games on campus, at Bronco Stadium in Boise, Idaho.

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