- Capital: Belfast
- Population: 1 million
Stadiums – Europe – United Kingdom – Northern Ireland
| Location | Stadium | Capacity | Main use |
| Armagh | Athletic Grounds | 18,000 | Gaelic football, hurling |
| Londonderry | Celtic Park | 18,000 | Gaelic football, hurling |
| Omagh | Healy Park | 18,000 | Gaelic football |
| Belfast | Kingspan Stadium | 18,000 | Rugby union |
| Belfast | Windsor Park | 18,000 | Football |