| Mode: | Basketball |
| Year: | 1999–2000 |
| Team: | George Mason Patriots |
| Conference: | Colonial Athletic Association |
| Short Conf: | CAA |
| Record: | 19–11 |
| Conf Record: | 12–4 |
| Hc Year: | 3rd |
| Champion: | CAA regular season co-champions |
The 1999–2000 George Mason Patriots Men's basketball team represents George Mason University during the 1999–2000 NCAA Division I men's basketball season. This was the 34th season for the program, the third under head coach Jim Larrañaga. The Patriots played their home games at the Patriot Center in Fairfax, Virginia.
Colonial Athletic Association Player of the Year
Colonial Athletic Association All-Conference Team
Colonial Athletic Association All-Defensive Team
Colonial Athletic Association Dean Ehlers Award
| Player | GP | FG% | 3FG% | FT% | RPG | APG | SPG | BPG | PPG |
|---|---|---|---|---|---|---|---|---|---|
| George Evans | 29 | .583 | .000 | .539 | 8.5 | 2.3 | 1.9 | 1.7 | 18.1 |
| Erik Herring | 27 | .466 | .389 | .719 | 3.1 | 2.9 | 1.1 | 0.4 | 13.6 |
| Keith Holdan | 30 | .418 | .388 | .744 | 6.2 | 2.5 | 1.2 | 0.4 | 10.6 |
| Ahmad Dorsett | 28 | .411 | .387 | .846 | 2.7 | 1.4 | 0.8 | 0.3 | 9.9 |
| Tremaine Price | 30 | .389 | .293 | .655 | 2.5 | 2.9 | 1.2 | 0.1 | 6.4 |
| Rob Anderson | 30 | .428 | .289 | .577 | 2.0 | 0.6 | 0.4 | 0.4 | 4.9 |
| Jesse Young | 30 | .418 | .100 | .500 | 2.2 | 0.6 | 0.2 | 0.3 | 3.4 |
| Terrance Nixon | 27 | .414 | .000 | .727 | 2.1 | 0.3 | 0.3 | 0.2 | 3.3 |
| Tyrone Tiggs | 26 | .365 | .056 | .552 | 1.0 | 1.0 | 0.7 | 0.0 | 2.4 |
| Jon Larranaga | 26 | .277 | .125 | .889 | 2.0 | 0.7 | 0.4 | 0.0 | 2.0 |
| Quilninious Randall | 8 | .333 | .000 | .000 | 0.6 | 0.0 | 0.0 | 0.0 | 0.3 |
|-!colspan=12 style=| Non-conference regular season|-!colspan=12 style=|CAA regular season|-!colspan=12 style=|2000 CAA tournament