The 2009–10 George Washington Colonials men's basketball team represented George Washington University in the 2009–10 NCAA Division I men's basketball season.

The Colonials were led by head coach Karl Hobbs in his ninth year leading the team.

The Colonials finished conference play with an 6–10 record, earning the 10th seed in the Atlantic 10 tournament.

George Washington was eliminated in the first round of the A-10 tournament by Dayton.

The Colonials were eliminated in the first round of the CBI by eventual tournament champion VCU, 79–73.