| Mode: | Basketball |
| Sex: | men |
| Year: | 2020–21 |
| Prev Year: | 2019–20 |
| Next Year: | 2021–22 |
| Team: | George Washington Colonials |
| Conference: | Atlantic 10 Conference |
| Short Conf: | A-10 |
| Record: | 5–12 |
| Conf Record: | 3–5 |
| Hc Year: | 2nd |
| Asst Coach2: | Graham Bousley |
| Asst Coach3: | Ryan Devlin |
The 2020–21 George Washington Colonials men's basketball team represented George Washington University during the 2020–21 NCAA Division I men's basketball season. The team was led by second-year head coach Jamion Christian, and played their home games at Charles E. Smith Center in Washington, D.C. as a member of the Atlantic 10 Conference. They finished the season 5-12, 3-5 in A-10 Play to finish in 11th place. They defeated Fordham in the first round of the A-10 tournament before losing in the second round to George Mason.
The Colonials finished the 2019–20 season with a 12–20 record and a 6–12 record in Atlantic 10 play. They were eliminated by Fordham in the opening round of the 2020 Atlantic 10 men's basketball tournament.[1]
|-!colspan=9 style=|Non-conference regular season|-!colspan=12 style=|Atlantic 10 regular season|-!colspan=12 style=| A-10 tournament[2]