| Competition: | Irish League |
| Season: | 1958–59 |
| Winners: | Linfield 24th Irish title |
| Matches: | 132 |
| Total Goals: | 574 |
| League Topscorer: | Jackie Milburn (26) |
| Prevseason: | 1957–58 |
| Nextseason: | 1959–60 |
The 1958–59 Irish League was the 58th edition of the Irish League, the highest level of league competition in Northern Irish football. The league comprised 12 teams, and Linfield won the championship.