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 finished the season 22–13, 10–8 in A-10 play to finish in a three-way tie for sixth place. They advanced to the quarterfinals of the A-10 tournament where they lost to Rhode Island. They were invited to the National Invitation Tournament where they defeated Pittsburgh in the first round before losing in the second round to Temple.