The 2004–05 George Mason Patriots men's basketball team began their 39th season of collegiate play on November 11, 2004, versus Indiana University-Purdue University Fort Wayne at the Coaches vs. Cancer Classic tournament in Memphis, TN.
The Patriots won that game, and finished the season with a record of 16 wins and 13 losses.
Second Team All-CAA Third Team All-CAA CAA All-Rookie Team CAA Player of the Week CAA Rookie of the Week