The 1975–76 Western Michigan Broncos men's basketball team was a National Collegiate Athletic Association (NCAA) Division I college basketball team that played in the Mid-American Conference (MAC). The Broncos, representing Western Michigan University (WMU), finished the season 25–3 overall and 15–1 in the conference, won the MAC championship and reached the Sweet Sixteen of the 1976 NCAA Men's Division I Basketball Tournament. They finished the season ranked No. 10 in the AP Poll and No. 19 in the UPI Poll.