1991–92 Irish League Cup
| Wilkinson Sword League Cup | |
|---|---|
| Tournament details | |
| Country | Northern Ireland |
| Teams | 32 |
| Defending champions | Glentoran |
| Final positions | |
| Champions | Linfield (2nd win) |
| Runners-up | Larne |
| Tournament statistics | |
| Matches played | 31 |
| Goals scored | 104 (3.35 per match) |
The 1991–92 Irish League Cup (known as the Wilkinson Sword League Cup for sponsorship reasons) was the 6th edition of the Irish League Cup, Northern Ireland's secondary football knockout cup competition. It concluded on 14 April 1992 with the final.
Glentoran unsuccessfully defended its 1991 title in the first round losing to Harland & Wolff Welders. Linfield successfully defend in the final its pursuit of a second title defeating Larne, 3–0.