The 2017–18 George Mason Patriots Men's basketball team represented George Mason University during the 2017–18 NCAA Division I men's basketball season. The season was the 52nd for the program, the third under head coach Dave Paulsen, and the fifth as members of the Atlantic 10 Conference The Patriots played their home games at EagleBank Arena in Fairfax, Virginia. They finished the season 16–17, 9–9 in A-10 play to finish in a four-way tie for fifth place. As the No. 5 seed in the A-10 tournament, they defeated Massachusetts in the second round before losing to Saint Joseph's in the quarterfinals.