Province of Armagh
Province of Cashel
| Cobh Cathedral (RC) | |
| Cork Cathedral (RC) | |
| Ennis Cathedral (RC) | |
| Killarney Cathedral (RC) | |
| Limerick Cathedral (RC) | |
| Skibbereen Cathedral (RC) | |
| Thurles Cathedral (RC) | |
| Waterford Cathedral (RC) |
Province of Dublin
Province of Tuam
| Ballaghaderreen Cathedral (RC) | |
| Ballina Cathedral (RC) | |
| Galway Cathedral (RC) | |
| Loughrea Cathedral (RC) | |
| Sligo Cathedral (RC) | |
| Tuam Cathedral (RC) |
Province of Armagh
Province of Dublin
Former cathedrals