| Year: | 1989 |
| Conference: | ACC |
| Gender: | Men's |
| Teams: | 8 |
| Arena: | Atlanta, Georgia |
| City: | Omni Coliseum |
| Champions: | North Carolina |
| Titlecount: | 11th |
| Coach: | Dean Smith |
| Coachcount: | 10th |
| Mvp: | J. R. Reid |
| Mvpteam: | North Carolina |
| Television: | Raycom/Jefferson-Pilot (Inside the ACC Footprint) NBC (Outside the ACC Footprint) |
The 1989 Atlantic Coast Conference men's basketball tournament took place in Atlanta, Georgia, at the Omni Coliseum. North Carolina won the tournament by defeating Duke, 77–74, in the championship game. J. R. Reid of North Carolina was named tournament MVP.
This was the first time the 1 seed in the ACC Tournament has failed to reach the semifinals.
AP rankings at time of tournament[1]