The 2020–21 Western Michigan Broncos men's basketball team represented Western Michigan University in the 2020–21 NCAA Division I men's basketball season.

The Broncos, led by first-year head coach Clayton Bates, played their home games at University Arena in Kalamazoo, Michigan as members of the Mid-American Conference.

[1] The MAC announced the removal of division play in-conference beginning this year.

[3] On March 11, 2020, the school announced that Steve Hawkins would not be returning as head coach, ending his 17-year tenure with the team.

[4] On April 2, it was announced that long-time assistant Clayton Bates would be named the Broncos' next head coach.