The 1989 Southland Conference men's basketball tournament was held March 4–6 at Super Pit in Denton, Texas.
[1] McNeese State defeated North Texas in the championship game, 85–68, to win their first Southland men's basketball tournament.
The Cowboys received a bid to the 1989 NCAA Tournament as #16 seed in the Midwest region.
They were seeded based on regular season conference records, with the top two teams earning byes into the semifinal round.
All remaining games were played at the Super Pit in Denton, Texas.