The 2019–20 Bucknell Bison men's basketball team represented Bucknell University during the 2019–20 NCAA Division I men's basketball season. The Bison, led by fifth-year head coach Nathan Davis, played their home games at Sojka Pavilion in Lewisburg, Pennsylvania as members of the Patriot League. They finished the season 14–20, 8–10 in Patriot League play to finish in a tie for sixth place. They defeated Holy Cross and American to advance to the semifinals of the Patriot League tournament where they lost to Boston University.