The 2014 Atlantic Sun men's basketball tournament was the 36th edition of the Atlantic Sun Conference Championship. It took place from March 4 through March 9 in several arenas. All games took place at the higher seed of the two teams competing.
The A-Sun Championship was a six-day single-elimination tournament. The top eight teams (with the exception of Northern Kentucky) competed in the championship. As part of their transition to Division I from Division II, Northern Kentucky will not be eligible for post-season play until 2017, including the A-Sun tournament. The winner of the tournament earned the A-Sun's automatic bid into the 2014 NCAA tournament.
The top seed was the defending champion Florida Gulf Coast University.
<small>* indicates overtime period</small>