Rugby - Celtic Cup
Defunct after just two seasons, the Celtic provincial and regional sides staged a knockout competition.
| YEAR | WINNERS | RUNNERS-UP |
| 2004 | ULSTER (Ire) | Edinburgh (Sco) |
| 2005 | MUNSTER (Ire) | Scarlets (Wal) |
| Final Venues | |
| Murrayfield | 2004 |
| Lansdowne Road | 2005 |
| Links to other Rugby Union |
| National Teams | Club/Provincial |