| Mode: | Basketball |
| Year: | 2020–21 |
| Team: | South Dakota State Jackrabbits |
| Conference: | Summit League |
| Short Conf: | The Summit |
| Record: | 16–7 |
| Conf Record: | 9–3 |
| Hc Year: | 2nd |
| Assoc Coach: | Rob Klinkefus |
| Asst Coach1: | Bryan Petersen |
| Asst Coach2: | Tramel Barnes |
| Champion: | Summit League regular season champions |
The 2020–21 South Dakota State Jackrabbits men's basketball team represented South Dakota State University in the 2020–21 NCAA Division I men's basketball season. The Jackrabbits, led by second-year head coach Eric Henderson, played their home games at Frost Arena in Brookings, South Dakota, as members of the Summit League.
The Jackrabbits finished the 2019–20 season 22–10, 13–3 in Summit League play to finish in a tie for the Summit League regular season championship. As the #2 seed in the Summit League tournament, they were upset in the quarterfinals by #7 seed Purdue Fort Wayne.[1]
|-!colspan=12 style=| Non-conference regular season|-!colspan=9 style=| Summit League regular season|-!colspan=9 style=| Summit League tournament|-Source[2]