The 2020–21 George Mason Patriots Men's basketball team represented George Mason University during the 2020–21 NCAA Division I men's basketball season.

The season marked the 55th for the program, the sixth under head coach Dave Paulsen, and the eighth as members of the Atlantic 10 Conference.

The Patriots played their home games at EagleBank Arena in Fairfax, Virginia.

They defeated George Washington in the second round of the A-10 tournament[1] before losing to Davidson in the quarterfinals.

[3] A week later, the school named Tennessee assistant Kim English the team's new head coach.