The 2003 Northern Illinois Huskies football team represented Northern Illinois University as a member of the West Division of the Mid-American Conference (MAC) during the 2003 NCAA Division I-A football season.

Led by eighth-year head coach Joe Novak, the Huskies compiled an overall record of 10–2 with a mark of 6–2 in conference play, placing second in the MAC's West Division.

Despite reaching bowl eligibility, Northern Illinois was not invited to a bowl game since the MAC only had two bowl tie-ins which went to those playing in the conference championship.

[1] The team played home games at Huskie Stadium in DeKalb, Illinois.

This college football 2000s season article is a stub.