1988 Illinois Fighting Illini football team

The 1988 Illinois Fighting Illini football team was an American football team that represented the University of Illinois during the 1988 NCAA Division I-A football season. In their first year under head coach John Mackovic, the Illini compiled a 6–5–1 record, finished in third place in the Big Ten Conference, and lost to Florida in the 1988 All-American Bowl.

The team's offensive leaders were quarterback Jeff George with 2,257 passing yards, running back Keith Jones with 1,108 rushing yards, and Steve Williams with 523 receiving yards.