| Year: | 1991 |
| Team: | Kansas State Wildcats |
| Sport: | football |
| Conference: | Big Eight Conference |
| Short Conf: | Big 8 |
| Record: | 7–4 |
| Conf Record: | 4–3 |
| Head Coach: | Bill Snyder |
| Hc Year: | 3rd |
| Off Coach: | Del Miller |
| Oc Year: | 3rd |
| Off Scheme: | Multiple |
| Codef Coach1: | Jim Leavitt |
| Codc1 Year: | 1st |
| Codef Coach2: | Bob Stoops |
| Codc2 Year: | 1st |
| Def Scheme: | 4–3 |
| Stadium: | KSU Stadium |
The 1991 Kansas State Wildcats football team represented Kansas State University in the 1991 NCAA Division I-A football season. The team's head football coach was Bill Snyder. The Wildcats played their home games in KSU Stadium. 1991 saw the Wildcats finish with a record of 7–4, and a 4–3 record in Big Eight Conference play.
1991 saw the first winning season for Kansas State since 1982. Kansas State recorded their first shutout of an opponent since September 20, 1975, when they shut out Wichita State at home. The Wildcats shut out Missouri on November 16, 1991.
See also: 1991 Washington Huskies football team.
See also: 1991 Nebraska Cornhuskers football team and Kansas State–Nebraska football rivalry.
See also: 1991 Colorado Buffaloes football team.
The following Wildcats were selected in the 1992 NFL draft after the season.[2]
| 5 | 118 | Rogerick Green | Cornerback | Tampa Bay Buccaneers | |
| 7 | 179 | Russ Campbell | Tight end | Pittsburgh Steelers | |
| 10 | 254 | Elijah Alexander | Linebacker | Tampa Bay Buccaneers |