The 2020 NCAA Division II men's basketball tournament was to be the annual single-elimination tournament to determine the national champion of men's NCAA Division II college basketball in the United States.

With a field of sixty-four teams, it was supposed to begin on March 16 and conclude with the championship game on April 5.

As with the prior year's format, the eight regional winners would have met in the Elite Eight for the quarterfinal, semifinal, and championship rounds.

The quarterfinal and semifinal rounds were scheduled to take place again at the Ford Center in Evansville, Indiana, while the championship final was due to take place at State Farm Arena in Atlanta, Georgia so as to coincide with the Division I Final Four.

The bids are allocated evenly among the eight NCAA-designated regions (Atlantic, Central, East, Midwest, South, South Central, Southeast, and West), each of which contains either two or three of the twenty-three Division II conferences that sponsor men's basketball (after the Heartland Conference disbanded in 2019, the South Region now features only two conferences).