| Year: | 1989 |
| Team: | Northwestern State Demons |
| Sport: | football |
| Conference: | Southland Conference |
| Short Conf: | Southland |
| Record: | 4–5–2 |
| Conf Record: | 3–1–2 |
| Head Coach: | Sam Goodwin |
| Hc Year: | 7th |
| Def Coach: | John Thompson |
| Dc Year: | 4th |
| Stadium: | Harry Turpin Stadium |
The 1989 Northwestern State Demons football team was an American football team that represented Northwestern State University as a member of the Southland Conference during the 1989 NCAA Division I-AA football season. In their seventh year under head coach Sam Goodwin, the team compiled an overall record of 4–5–2, with a mark of 3–1–2 in conference play, and finished second in the Southland.