The 2018 ASUN men's basketball tournament was the conference postseason tournament for the ASUN Conference.
The tournament was the 39th year the league has conducted a postseason tournament.
The tournament was held February 26, March 1, and 4, 2018 at campus sites of the higher seeds.
[1] Lipscomb defeated regular season champion Florida Gulf Coast in the tournament championship to receive the conference's automatic bid to the NCAA tournament, the school's first trip to the NCAA Tournament.
[2] Teams were seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.