The 2020 Big Ten men's basketball tournament was the postseason men's basketball tournament for the Big Ten Conference of the 2019–20 NCAA Division I men's basketball season. The tournament remained in its more traditional Midwest roots as it was held at the Bankers Life Fieldhouse in Indianapolis, Indiana. The first round games on March 11 were played with spectators in attendance. Later on March 11, the Big Ten conference announced that the remainder of the Big Ten tournament would proceed as scheduled but with no spectators in attendance due to the outbreak of the COVID-19 pandemic.