The 2015 Northern Arizona Lumberjacks football team represented Northern Arizona University in the 2015 NCAA Division I FCS football season.

They were led by 18th-year head coach Jerome Souers and played their home games at the Walkup Skydome.

They were a member of the Big Sky Conference.

They finished the season 7–4, 5–3 in Big Sky play to finish in a four-way tie for fourth place.

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