| Year: | 2021 |
| Team: | Sacred Heart Pioneers |
| Sport: | football |
| Conference: | Northeast Conference |
| Short Conf: | NEC |
| Record: | 8–4 |
| Conf Record: | 6–1 |
| Head Coach: | Mark Nofri |
| Hc Year: | 10th |
| Off Coach: | Matt Gardner |
| Oc Year: | 5th |
| Def Coach: | Mike Cooke |
| Dc Year: | 5th |
| Stadium: | Campus Field |
| Champion: | NEC champion |
| Bowl: | NCAA Division I First Round |
The 2021 Sacred Heart Pioneers football team represented Sacred Heart University as a member of the Northeast Conference (NEC) in the 2021 NCAA Division I FCS football season. Led by tenth-year head coach Mark Nofri, the Pioneers compiled an overall record of 8–4 with a mark of 6–1 in conference play, winning the NEC title. Sacred Heart earned the conference's automatic bid to the NCAA Division I Football Championship playoffs, losing in the first round to Holy Cross. The team played home games at Campus Field in Fairfield, Connecticut.