The 2018 Illinois Fighting Illini football team represented the University of Illinois at Urbana–Champaign as a member of the West Division of the Big Ten Conference during the 2018 NCAA Division I FBS football season. Led by third-year head coach Lovie Smith, the Fighting Illini compiled an overall record of 4–8 with a mark of 2–7 in conference play, placing last out of seven teams in the Big Ten's West Division. Illinois played home games at Memorial Stadium in Champaign, Illinois.