The Double is a term in Gaelic games

Gaelic games

Gaelic games are sports played in Ireland under the auspices of the Gaelic Athletic Association. The two main games are Gaelic football and hurling...

 that refers to a county winning the All-Ireland Senior Football Championship

All-Ireland Senior Football Championship

The All-Ireland Senior Football Championship, the premier competition in Gaelic football, is a series of games organised by the Gaelic Athletic Association and played during the summer and early autumn...

 and the All-Ireland Senior Hurling Championship

All-Ireland Senior Hurling Championship

The GAA Hurling All-Ireland Senior Championship is an annual hurling competition organised by the Gaelic Athletic Association since 1887 for the top hurling teams in Ireland....

 in the same year. Other major trophies won in combination in the same year at minor or under-21 levels are also often referred to as doubles. Similarly, the winning of the All-Ireland and the National League titles in the same year may also be referred to as the Double, albeit an inferior one.