| Season | 2005 |
|---|---|
| Champions | Cork City (2nd title) |
| Relegated | Shamrock Rovers Finn Harps |
| UEFA Champions League | Cork City |
| UEFA Cup | Derry City Drogheda United |
| UEFA Intertoto Cup | Shelbourne |
| Setanta Sports Cup | Cork City Derry City Drogheda United Shelbourne |
| Top goalscorer | Jason Byrne: 22 (Shelbourne) [1] |
| Highest attendance | 7,000[2] Cork City F.C. 1–0 Derry City F.C. |
← 2004 2006 → | |
The 2005 League of Ireland Premier Division was the 21st season of the League of Ireland Premier Division. The division was made up of 12 teams. Cork City were champions while Derry City finished as runners-up. This was the first time the title had been won by a club from outside County Dublin since 1996–97.