| Competition: | Irish League |
| Season: | 1991–92 |
| Winners: | Glentoran 19th Irish title |
| Matches: | 240 |
| Total Goals: | 724 |
| League Topscorer: | Harry McCourt Stephen McBride (18 goals each) |
| Prevseason: | 1990–91 |
| Nextseason: | 1992–93 |
The 1991–92 Irish League was the 91st edition of the Irish League, the highest level of league competition in Northern Irish football. The league consisted of 16 teams, and Glentoran won the championship.