| Competition: | Irish League |
| Season: | 1926–27 |
| Winners: | Belfast Celtic 5th Irish title |
| Matches: | 132 |
| Total Goals: | 551 |
| League Topscorer: | Joe Bambrick (28) |
| Prevseason: | 1925–26 |
| Nextseason: | 1927–28 |
The 1926–27 Irish League was the 33rd edition of the Irish League, the highest level of league competition in Northern Irish football. The league comprised 12 teams, and Belfast Celtic won the championship.