1938 Arizona State–Flagstaff Lumberjacks football team

The 1938 Arizona State–Flagstaff Lumberjacks football team represented Arizona State Teachers College at Flagstaff (now known as Northern Arizona University) as a member of the Border Conference during the 1938 college football season. Led by third-year head coach Garrett Arbelbide, the Lumberjacks compiled an overall record of 2–6–1, with a conference record of 1–2, and finished fifth in the Border.