| Competition: | Irish League |
| Season: | 1928–29 |
| Winners: | Belfast Celtic 7th Irish title |
| Matches: | 182 |
| Total Goals: | 873 |
| League Topscorer: | Joe Bambrick (43) |
| Prevseason: | 1927–28 |
| Nextseason: | 1929–30 |
The 1928–29 Irish League was the 35th edition of the Irish League, the highest level of league competition in Northern Irish football. The league comprised 14 teams, and Belfast Celtic won the championship.