| Mode: | Basketball |
| Year: | 2020–21 |
| Prev Year: | 2019–20 |
| Next Year: | 2021–22 |
| Team: | San Jose State Spartans |
| Conference: | Mountain West Conference |
| Short Conf: | MW |
| Record: | 5–16 |
| Conf Record: | 3–13 |
| Hc Year: | 4th |
| Asst Coach1: | Will Kimble |
| Asst Coach3: | Tim Marrion |
The 2020–21 San Jose State Spartans men's basketball team represented San Jose State University in the 2020–21 NCAA Division I men's basketball season. They were led by fourth-year head coach Jean Prioleau and were members of the Mountain West Conference. Due to COVID-19 restrictions in Santa Clara County, the Spartans could not play their home games at their normal home arena, Provident Credit Union Event Center, and played their "home" games at different locations.
The Spartans finished the season 7–24, 3–15 in Mountain West play to finish in tenth place. They lost in the first round of the Mountain West tournament to New Mexico.
|-!colspan=9 style=| Regular season|-!colspan=9 style=| Mountain West tournamentSource[1]