The 2018 Southland Conference baseball tournament was held from May 23 through 26. The top eight regular season finishers of the league's thirteen teams met in the double-elimination tournament, which was held at Constellation Field in Sugar Land, Texas. As the winner of the tournament, earned the conference's automatic bid to the 2018 NCAA Division I baseball tournament. It was Northwestern State's first Tournament championship.
The top eight finishers from the regular season were seeded one through eight. They played a two bracket, double-elimination tournament, with the winner of each bracket meeting in a single championship final.
The following players were named to the All-Tournament Team.
David Fry was named Tournament Most Valuable Player. Fry was a first baseman for Northwestern State.