The 2019–20 Grand Canyon Antelopes men's basketball team represented Grand Canyon University during the 2019–20 NCAA Division I men's basketball season. They were led by head coach Dan Majerle in his seventh season. The Antelopes played their home games at GCU Arena in Phoenix, Arizona as members of the Western Athletic Conference. They finished the season 13–17, 8–8 in WAC play to finish in a tie for fifth place. They were set to be the No. 4 seed in the WAC tournament, however the tournament was canceled amid concerns over the coronavirus pandemic.