The Irish Football Association Challenge Cup, commonly referred to as the Irish Cup (currently known as the Sadler's Peaky Blinder Irish Cup for sponsorship purposes) is the primary football knock-out cup competition in Northern Ireland. Inaugurated in 1881, it is the fourth-oldest national cup competition in the world. Prior to the break-away from the Irish Football Association by clubs from what would become the Irish Free State in 1921, the Irish Cup was the national cup competition for the whole of Ireland.
|Organising body||Irish Football Association|
|Number of teams||128 (2021–22)|
|International cup(s)||UEFA Europa Conference League|
|Current champions||Linfield (2020–21)|
|Most successful club(s)||Linfield (44 titles)|
|Television broadcasters||BBC Sport (highlights & 3 live games including final)|
Since December 2019, the cup has been sponsored by Sadler's Peaky Blinder Lager. It was previously sponsored by Nationwide Building Society, Bass Ireland Ltd, JJB Sports and Tennent's Lager. 126 clubs entered the 2018–19 competition.