| Year: | 1990 |
| Conference: | Southland Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 7 |
| Arena: | Fant-Ewing Coliseum |
| City: | Monroe, Louisiana |
| Champions: | Northeast Louisiana |
| Titlecount: | 2nd |
| Coach: | Mike Vining |
| Coachcount: | 2nd |
| Mvp: | Anthony Jones |
| Mvpteam: | Northeast Louisiana |
The 1990 Southland Conference men's basketball tournament was held March 5–7 at Fant-Ewing Coliseum in Monroe, Louisiana.[1]
Northeast Louisiana defeated in the championship game, 84–68, to win their first Southland men's basketball tournament.
The Warhawks received a bid to the 1990 NCAA Tournament as the #15 seed in the Midwest region.
All seven of the conference's members participated in the tournament field. They were seeded based on regular season conference records, with the top team earning a bye into the semifinal round. The other six teams began play in the quarterfinal round.
Games in the quarterfinal round were played at the home court of the higher-seeded team. All remaining games were played at Fant-Ewing Coliseum in Monroe, Louisiana.