| Type: | NAIA |
| Year: | 1990 |
| Teams: | 32 |
| Finalfourarena: | Kemper Arena |
| Finalfourcity: | Kansas City, Missouri |
| Champions: | Birmingham Southern |
| Titlecount: | 1 |
| Champgamecount: | 1 |
| Champffcount: | 1 |
| Runnerup: | Wisconsin Eau Claire |
| Gamecount: | 2 |
| Runnerffcount: | 2 |
| Semifinal1: | Georgetown (KY) |
| Finalfourcount1: | 4 |
| Semifinal2: | David Lipscomb |
| Finalfourcount2: | 2 |
| Mvp: | Stacey Butler |
| Mvpteam: | Birmingham Southern |
| Hustle: | Tim Blair |
| Hustleschool: | Wisconsin Eau Claire |
| Attendance: | unknown |
The 1990 NAIA men's basketball tournament was held in March at Kemper Arena in Kansas City, Missouri. The 53rd annual NAIA basketball tournament featured 32 teams playing in a single-elimination format. Birmingham Southern won the championship after a close final (98–96) against Wisconsin Eau Claire.[1]