The 2017–18 Western Michigan Broncos men's basketball team represents Western Michigan University during the 2017–18 NCAA Division I men's basketball season. The Broncos, led by 15th-year head coach Steve Hawkins, play their home games at University Arena as members of the West Division of the Mid-American Conference. They finished the season 17–15, 9–9 in MAC play to finish fourth in the West Division. As the No. 8 seed in the MAC tournament, they lost in the first round of the conference tournament to Akron.