1980–81 Irish League
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The Irish League in season 1980–81 comprised 12 teams, and Glentoran won the championship.
League standings
| Pos | Club | P | W | D | L | GF | GA | Pts |
| 1 | Glentoran | 22 | 15 | 7 | 0 | 59 | 26 | 37 |
| 2 | Linfield | 22 | 16 | 3 | 3 | 57 | 15 | 35 |
| 3 | Ballymena United | 22 | 12 | 4 | 6 | 33 | 21 | 28 |
| 4 | Crusaders | 22 | 9 | 6 | 7 | 28 | 26 | 24 |
| 5 | Ards | 22 | 9 | 6 | 7 | 35 | 40 | 24 |
| 6 | Glenavon | 22 | 7 | 8 | 7 | 37 | 37 | 22 |
| 7 | Larne | 22 | 9 | 4 | 9 | 26 | 26 | 22 |
| 8 | Portadown | 22 | 8 | 5 | 9 | 30 | 34 | 21 |
| 9 | Coleraine | 22 | 5 | 8 | 9 | 28 | 36 | 18 |
| 10 | Cliftonville | 22 | 5 | 5 | 12 | 20 | 37 | 15 |
| 11 | Bangor | 22 | 4 | 5 | 13 | 35 | 54 | 13 |
| 12 | Distillery | 22 | 1 | 3 | 18 | 18 | 54 | 5 |
