The 2020 Atlantic 10 men's basketball tournament was the postseason men's basketball tournament for the Atlantic 10 Conference's 2019–20 season. It was scheduled to be held from March 11, through March 15, 2020, at the Barclays Center in Brooklyn, New York. On March 12, 2020, the remainder of the Atlantic 10 Tournament was cancelled due to the COVID-19 pandemic.