The 2020 Atlantic 10 men's basketball tournament was the postseason men's basketball tournament for the Atlantic 10 Conference's 2019–20 season.
[1] On March 12, 2020, the remainder of the Atlantic 10 Tournament was cancelled due to the COVID-19 pandemic.
All 14 A-10 schools were slated to participate in the tournament.
Teams were seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.
The top 10 teams received a first-round bye and the top four teams received a double bye, automatically advancing them to the quarterfinals.