2011–12 Irish Cup
| Tournament details | |
|---|---|
| Country | Northern Ireland |
| Teams | 116 |
| Defending champions | Linfield |
| Final positions | |
| Champions | Linfield (42nd win) |
| Runners-up | Crusaders |
| Tournament statistics | |
| Matches played | 119 |
| Goals scored | 493 (4.14 per match) |
The 2011–12 Irish Cup (known as the JJB Sports Irish Cup for sponsorship reasons) was the 132nd edition of the Irish Cup, Northern Ireland's premier football knock-out cup competition.. The competition began on 17 September 2011 with the first round and ended on 5 May 2012 with the final.
Linfield were the defending champions, after a 2–1 victory over Crusaders in last season's final. The two clubs met again in this season's final, and Linfield successfully defended the cup to win it for the sixth time in seven seasons after defeating Crusaders 4–1. Crusaders qualified for the first qualifying round of the 2012–13 UEFA Europa League as Linfield had already qualified for the UEFA Champions League by winning the 2011–12 IFA Premiership.