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| Nickname(s) | The Ulstermen | |||
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| Founded | 1879 | |||
| Location | Belfast, Northern Ireland | |||
| Ground(s) | Ravenhill Stadium (Capacity: 18,196) | |||
| Chairman | Hugh McCaughey (interim) | |||
| Coach(es) | Richie Murphy | |||
| Captain(s) | Iain Henderson | |||
| Most appearances | Rob Herring (241) | |||
| Top scorer | David Humphreys (1,585) | |||
| Most tries | Andrew Trimble (76) | |||
| League(s) | United Rugby Championship | |||
| 2023–24 | Quarter-finals 2nd Irish Shield (6th overall) | |||
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| Official website | ||||
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 Current season | ||||
Ulster Rugby is one of the four professional provincial rugby union teams from the island of Ireland. They compete in the Irish regional pool of the United Rugby Championship and in the European Rugby Champions Cup, each of which they have won once. Ulster were the first Irish team and the first team outside England and France to win the European Cup in 1999.
The team represents the IRFU Ulster Branch, which is one of the four primary branches of the IRFU and is responsible for rugby union throughout the geographical Irish province of Ulster, comprising Northern Ireland (Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone) and three counties in the Republic of Ireland which are Donegal, Monaghan and Cavan.
Prior to professionalisation, Ulster were a representative amateur team taking part in the IRFU Interprovincial Championship. They have also competed in the now defunct Celtic Cup (2003–05). Their development team, Ulster A, formerly known as the Ulster Ravens, have competed in the British and Irish Cup (2009–18) and a revived Celtic Cup (2018–20).