The Centenary Cup was a Gaelic Games competition arranged by the Gaelic Athletic Association to mark the centenary of the GAA in 1984.
The hurling competition was won by Cork and the football competition was won by Meath.
| Match | Date | Venue | Team | Score | Team | Score |
|---|---|---|---|---|---|---|
| Preliminary Round | April 15 | Portaferry | Westmeath | 2-14 | Down | 1-10 |
| Preliminary Round | April 15 | Athleague | Roscommon | 3-5 | Wexford | 2-7 |
| 1st Round | Date | Loughrea | Galway | ?-?? | Dublin | ?-?? |
| 1st Round | Date | Casement Park | Waterford | 3-12 | Antrim | 3-11 |
| 1st Round | Date | Venue | Tipperary | 5-20 | Kildare | 4-7 |
| 1st Round | Date | Venue | Laois | 2-9 | Limerick | 2-8 |
| 1st Round | Date | Athleague | Cork | 3-18 | Roscommon | 1-8 |
| 1st Round | Date | Venue | Clare | 4-10 | Kerry | 0-9 |
| 1st Round | Date | Venue | Kilkenny | 3-17 | Wicklow | 2-8 |
| 1st Round | Date | Venue | Offaly | 1-15 | Westmeath | 0-14 |
| Quarter-final | May 6 | Semple Stadium | Galway | 3-14 | Waterford | 2-8 |
| Quarter-final | May 6 | Nowlan Park | Laois | 1-17 | Tipperary | 4-7 |
| Quarter-final | May 6 | Semple Stadium | Cork | 0-14 | Clare | 1-5 |
| Quarter-final | May 6 | Croke Park | Offaly | 1-17 | Kilkenny | 2-11 |
| Semi-final | May 13 | Semple Stadium | Laois | 5-7 | Galway | 4-9 |
| Semi-final | May 13 | Semple Stadium | Cork | 1-15 | Offaly | 3-7 |
| Final | May 20 | Croke Park | Cork | 2-21 | Laois | 1-9 |
| Match | Date | Venue | Team | Score | Team | Score |
|---|---|---|---|---|---|---|
| Quarter-final | May 6 | Tullamore | Meath | 2-18 | Galway | 0-11 |
| Quarter-final | May 6 | Newbridge | Cavan | 1-9 | Wexford | 1-7 |
| Quarter-final | May 6 | Croke Park | Monaghan | 1-10 | Offaly | 0-10 |
| Quarter-final | May 6 | Navan | Derry | 3-10 | Wicklow | 0-6 |
| Semi-final | May 13 | Croke Park | Meath | 3-12 | Cavan | 0-8 |
| Semi-final | May 13 | Croke Park | Monaghan | 0-22 | Derry | 2-11 |
| Final | May 20 | Croke Park | Meath | 0-10 | Monaghan | 0-8 |