1989–90 League of Ireland Premier Division
| Season | 1989–90 |
|---|---|
| Champions | St Patrick's Athletic (4th title) |
| Relegated | Drogheda United UCD |
| European Cup | St Patrick's Athletic |
| UEFA Cup | Derry City |
| UEFA Cup Winners' Cup | Bray Wanderers |
| Top goalscorer | Mark Ennis: 19 (St. Patrick's Athletic) |
← 1988–89 1990–91 → | |
The 1989–90 League of Ireland Premier Division was the fifth season of the League of Ireland Premier Division. The Premier Division was made up of 12 teams.