2019 ASUN men's basketball tournament

The 2019 ASUN men's basketball tournament was the conference postseason tournament for the ASUN Conference. The tournament was the 40th year the league has conducted a postseason tournament. The tournament was held March 4, 7, and 10, 2019 at campus sites of the higher seeds. Liberty upset top-seeded Lipscomb 74–68 in the championship game to win the tournament, and the conference's automatic bid to the NCAA tournament.

Seeds
Because North Alabama is in the first year of a four-year transition from NCAA Division II to Division I, it will not be eligible to compete in either the NCAA Tournament or the NCAA-operated NIT. Should the Lions win the ASUN tournament final, the ASUN's automatic NCAA Tournament bid goes either to Lipscomb or to Liberty if Liberty advances further than Lipscomb in the A-Sun tournament.