1979 Cal Poly Mustangs football team

The 1979 Cal Poly Mustangs football team represented California Polytechnic State University, San Luis Obispo as a member of the California Collegiate Athletic Association (CCAA) during the 1979 NCAA Division II football season. Led by 12th-year head coach Joe Harper, Cal Poly compiled an overall record of 7–3 with a mark of 2–0 in conference play, winning the CCAA title for the fourth consecutive season. The Mustangs played home games at Mustang Stadium in San Luis Obispo, California.