The 2020–21 Bellarmine Knights men's basketball team represented Bellarmine University in the 2020–21 NCAA Division I men's basketball season. The Knights, led by 16th-year head coach Scott Davenport, played their home games at Freedom Hall in Louisville, Kentucky as members of the ASUN Conference. They finished the season 14-8 and 10-3 in ASUN play to finish in second place in the conference. They earned the second seed in the , losing in the quarterfinals to Stetson. They were invited to the College Basketball Invitational (the program’s first ever Division I postseason event), where they defeated Army in the quarterfinals and lost to Pepperdine in the semifinals.