2004 Illinois State Redbirds football team

The 2004 Illinois State Redbirds football team represented Illinois State University as a member of the Gateway Football Conference during the 2004 NCAA Division I-AA football season. Led by fifth-year head coach Denver Johnson, the Redbirds compiled an overall record of 4–7 with a mark of 2–5 in conference play, placing in a three-way tie for fifth in the Gateway. Illinois State played home games at Hancock Stadium in Normal, Illinois.