| Year: | 1988 |
| Team: | Northwestern State Demons |
| Sport: | football |
| Conference: | Southland Conference |
| Short Conf: | Southland |
| Record: | 10–3 |
| Conf Record: | 6–0 |
| Head Coach: | Sam Goodwin |
| Hc Year: | 6th |
| Def Coach: | John Thompson |
| Dc Year: | 3rd |
| Stadium: | Harry Turpin Stadium |
| Champion: | SLC champion |
| Bowl: | NCAA Division I-AA quarterfinal |
| Bowl Result: | L 30–38 vs. Idaho |
The 1988 Northwestern State Demons football team was an American football team that represented Northwestern State University as a member of the Southland Conference during the 1988 NCAA Division I-AA football season. In their sixth year under head coach Sam Goodwin, the team compiled an overall record of 10–3, with a mark of 6–0 in conference play, and finished as Southland champion. After they defeated Boise State in the forst round, the Demons lost to Idaho in the Division I-AA quarterfinals.