| Competition: | Irish League |
| Season: | 1970–71 |
| Winners: | Linfield 29th Irish title |
| Matches: | 132 |
| Total Goals: | 447 |
| League Topscorer: | Bryan Hamilton (18) |
| Prevseason: | 1969–70 |
| Nextseason: | 1971–72 |
The 1970–71 Irish League was the 70th edition of the Irish League, the highest level of league competition in Northern Irish football. The league consisted of 12 teams, and Linfield won the championship.