| Year: | 2021 |
| Team: | Cornell Big Red |
| Sport: | football |
| Conference: | Ivy League |
| Short Conf: | Ivy |
| Record: | 2–8 |
| Conf Record: | 1–6 |
| Head Coach: | David Archer |
| Hc Year: | 8th |
| Off Coach: | Joe Villapiano |
| Oc Year: | 4th |
| Def Coach: | Jared Backus |
| Dc Year: | 8th |
| Stadium: | Schoellkopf Field |
| Prev Year: | 2019 |
The 2021 Cornell Big Red football team represented Cornell University in the 2021 NCAA Division I FCS football season as a member of the Ivy League. The team was led by eighth-year head coach David Archer and played its home games at Schoellkopf Field. Cornell averaged 4,075 fans per game.