| Select Year | ||
Noel O’Mahony’s Cork City side narrowly missed out on a league title following a final day defeat to Dundalk. Tom McNulty’s goal cost the Leesider’s their first championship, with City needing only a draw in the title decider. Second place earned City a place in the UEFA Cup for the following season.
Limerick and Bohemians knocked City out of the League Cup and FAI Cup respectively, but the Munster Cup was secured with a 3-0 win over Limerick on the last day of the season.
Note 1: Galway United F.C. qualified for the 1991–92 European Cup Winners’ Cup after winning the 1990–91 FAI Cup final.
| Pos | Team | P | W | D | L | F | A | GD | Pts |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Dundalk (C) | 33 | 22 | 8 | 3 | 52 | 27 | 25 | 52 |
| 2 |  Cork City | 33 | 19 | 12 | 2 | 45 | 18 | 27 | 50 |
| 3 |  St. Patrick's Athletic | 33 | 17 | 10 | 6 | 46 | 21 | 25 | 44 |
| 4 |  Shelbourne | 33 | 18 | 6 | 9 | 59 | 30 | 29 | 42 |
| 5 |  Sligo Rovers | 33 | 13 | 12 | 8 | 34 | 22 | 12 | 38 |
| 6 |  Shamrock Rovers | 33 | 14 | 9 | 10 | 51 | 37 | 14 | 37 |
| 7 |  Derry City | 33 | 13 | 9 | 11 | 51 | 28 | 23 | 35 |
| 8 |  Galway United | 33 | 9 | 5 | 19 | 34 | 61 | -27 | 23 |
| 9 |  Bohemians | 33 | 7 | 8 | 18 | 27 | 42 | -15 | 22 |
| 10 |  Athlone Town | 33 | 6 | 7 | 20 | 22 | 53 | -31 | 19 |
| 11 |  Waterford (R) | 33 | 6 | 5 | 22 | 22 | 62 | -40 | 17 |
| 12 |  Limerick (R) | 33 | 6 | 5 | 22 | 21 | 73 | -52 | 17 |
