The 2014–15 George Washington Colonials men's basketball team represented George Washington University during the 2014–15 NCAA Division I men's basketball season.

The Colonials, led by fourth year head coach Mike Lonergan, played their home games at the Charles E. Smith Center and were members of the Atlantic 10 Conference.

They advanced to the quarterfinals of the A-10 tournament where they lost to Rhode Island.

In the 2014 Atlantic 10 tournament, the Colonials lost to VCU in the semifinals.

They received an at-large bid to the NCAA tournament where they lost in the second round to Memphis.