| Mode: | Basketball |
| Year: | 2020–21 |
| Team: | Cal State Northridge Matadors |
| Conference: | Big West Conference |
| Short Conf: | Big West |
| Record: | 9–13 |
| Conf Record: | 5–9 |
| Hc Year: | 3rd |
| Ac1 Year: | 3rd |
| Asst Coach2: | Jeff Dunlap |
| Ac2 Year: | 3rd |
The 2020–21 Cal State Northridge Matadors men's basketball team represented California State University, Northridge in the 2020–21 NCAA Division I men's basketball season. The Matadors, led by third-year head coach Mark Gottfried, played their home games at the Matadome in Northridge, California as members of the Big West Conference.
The Matadors finished the 2019–20 season 15–17, 10–6 in Big West play to finish in a tie for second place. They were set to be the No. 2 seed in the Big West tournament, and face Cal State Fullerton, however, the tournament was cancelled amid the COVID-19 pandemic.[1]
|-!colspan=12 style=| Regular season
|-!colspan=12 style=| Big West tournament|-|-Source[2]