| Year: | 2005 |
| Team: | Cornell Big Red |
| Sport: | football |
| Conference: | Ivy League |
| Short Conf: | Ivy |
| Record: | 6–4 |
| Conf Record: | 4–3 |
| Head Coach: | Jim Knowles |
| Hc Year: | 2nd |
| Off Coach: | Clayton Carlin |
| Oc Year: | 2nd |
| Captain: | Kevin Boothe, Kevin Rex, Joel Sussman |
The 2005 Cornell Big Red football team represented Cornell University in the 2005 NCAA Division I-AA football season as a member of the Ivy League. They were led by second-year head coach Jim Knowles and played their home games at Schoellkopf Field. Cornell finished the season 6–4 overall and 4–3 in Ivy League play.