2018–19 Irish Cup
| Tournament details | |
|---|---|
| Country | Northern Ireland |
| Teams | 126 |
| Defending champions | Coleraine |
| Final positions | |
| Champions | Crusaders (4th win) |
| Runners-up | Ballinamallard United |
| Tournament statistics | |
| Matches played | 123 |
| Goals scored | 530 (4.31 per match) |
The 2018–19 Irish Cup (known as the Tennent's Irish Cup for sponsorship purposes) was the 139th edition of the Irish Cup, the premier knockout cup competition in Northern Irish football. The competition began on 11 August 2018 and concluded with the final at Windsor Park on 4 May 2019.
Coleraine were the defending champions, having defeated Cliftonville in the 2018 final. Crusaders were the eventual winners, defeating second-tier side Ballinamallard United 3–0 in the final to lift the Cup for the fourth time overall, and the first time in the 10 years since winning the 2009 final.