| Year: | 1989 |
| Conference: | Association of Mid-Continent Universities |
| Gender: | Men's |
| Teams: | 7 |
| Arena: | Hammons Student Center |
| City: | Springfield, Missouri |
| Champions: | Southwest Missouri State |
| Titlecount: | 2nd |
| Coach: | Charlie Spoonhour |
| Coachcount: | 2nd |
| Mvp: | Hubert Henderson |
| Mvpteam: | Southwest Missouri State |
| Different Previous: | 1987 |
| Different Next: | 1990 |
The 1989 AMCU-8 men's basketball tournament was held March 6–8, 1989, at the Hammons Student Center at Southwest Missouri State University in Springfield, Missouri.[1]
Southwest Missouri State defeated in the title game, 73–67, to win their second AMCU/Summit League championship. The Bears earned an automatic bid to the 1989 tournament as the #14 seed in the West region where they lost 60–51 in the opening round to eventual national runner-up Seton Hall.
Seven conference members qualified for the tournament. The top seed, Southwest Missouri State, was given a bye to the semifinal round. The other six teams were paired in the quarterfinal round with seedings based on regular season record.