| Mode: | Basketball |
| Year: | 2020–21 |
| Team: | Old Dominion Monarchs |
| Conference: | Conference USA |
| Division: | East Division |
| Short Conf: | C-USA |
| Record: | 15–8 |
| Conf Record: | 11–5 |
| Hc Year: | 8th |
| Asst Coach1: | John Richardson |
| Asst Coach3: | Chris Kovensky |
| Sex: | men |
The 2020–21 Old Dominion Monarchs men’s basketball team represented Old Dominion University in the 2020–21 NCAA Division I men's basketball season. The Monarchs, led by eighth-year head coach Jeff Jones, played their home games at Chartway Arena in Norfolk, Virginia as members of the East Division of Conference USA.
The Monarchs finished the 2019–20 season 13–19, 9–9 in C-USA play to finish in a tie for seventh place. In the C-USA tournament, they were defeated in the first round by Florida Atlantic.[1]
|-!colspan=12 style=| Non-conference regular season|-!colspan=12 style=| C-USA regular season|-!colspan=12 style=| Conference USA tournament|-|-Source[2]