The 2020–21 Northern Illinois Huskies men's basketball team represented Northern Illinois University in the 2020–21 NCAA Division I men's basketball season. The Huskies, led by interim head coach Lamar Chapman, played their home games at the Convocation Center in DeKalb, Illinois as members of the Mid-American Conference. In a season limited due to the ongoing COVID-19 pandemic, the Huskies finished the season 3–16, 2–12 in MAC play to finish in last place. They failed to qualify for the MAC tournament which had been limited to provide that the bottom four finishers would not be eligible. The MAC also announced the removal of divisions in cost-cutting measure partly attributed to COVID-19.