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.