1905–06 Irish League
The 1905–06 Irish League was the 16th edition of the Irish League, the highest level of league competition in Irish football.
The league comprised eight teams, and Cliftonville and [Lisburn Lisburn Distillery F.C.|Distillery F.C.|Distillery] shared the championship after two drawn play-off matches could not separate the sides. Cliftonville won their 1st league title while Distillery won their 5th.
Season summary
Cliftonville and Distillery finished the league level with 19 points. The first playoff 26 May 1906 to decide the title was a 0–0 draw, and the replayed match on 30 May was a 2–2 draw. In June 1906, the League determined that rather than replay again, Cliftonville and Distillery would be joint holders of the league title.Teams and locations
| Team | Town | Home Ground |
| Belfast Celtic | Belfast | Celtic Park |
| Bohemians | Dublin | Dalymount Park |
| Cliftonville | Belfast | Solitude |
| Derry Celtic | Derry | Brandywell |
| Distillery | Belfast | Grosvenor Park |
| Glentoran | Belfast | The Oval |
| Linfield | Belfast | Windsor Park |
| Shelbourne | Dublin | Dalymount Park |