| Year: | 1985 |
| Team: | Grambling State Tigers |
| Sport: | football |
| Conference: | Southwestern Athletic Conference |
| Short Conf: | SWAC |
| Record: | 9–3 |
| Conf Record: | 6–1 |
| Head Coach: | Eddie Robinson |
| Hc Year: | 43rd |
| Stadium: | Eddie G. Robinson Memorial Stadium |
| Champion: | SWAC co-champion |
| Bowl: | NCAA Division I-AA First Round |
| Bowl Result: | L 7–10 at Arkansas State |
The 1985 Grambling State Tigers football team represented Grambling State University as a member of the Southwestern Athletic Conference (SWAC) during the 1985 NCAA Division I-AA football season. Led by 43rd-year head coach Eddie Robinson, the Tigers compiled an overall record of 9–3 and a mark of 6–1 in conference play, and finished as SWAC co-champion. Grambling State advanced to the NCAA Division I-AA Football Championship playoffs, where they were defeated by Arkansas State in the first round.
The Tigers' 27–7 victory over Prairie View A&M was the 324th all-time victory for Robinson, and placed him ahead of Bear Bryant for the most career victories for a college football coach.