I can offer you a list of some well-known and historically significant castles. Please note that this list is not exhaustive, and there are many more castles to explore in Ireland:
- Blarney Castle, County Cork
- Ashford Castle, County Mayo
- Bunratty Castle, County Clare
- Trim Castle, County Meath
- Kylemore Abbey, County Galway
- Malahide Castle, County Dublin
- Kilkenny Castle, County Kilkenny
- Doe Castle, County Donegal
- Dromoland Castle, County Clare
- Cahir Castle, County Tipperary
- Rock of Cashel, County Tipperary
- Dunluce Castle, County Antrim
- Glenveagh Castle, County Donegal
- Dunguaire Castle, County Galway
- Ballynahinch Castle, County Galway
- Bective Abbey, County Meath
- Donegal Castle, County Donegal
- Ross Castle, County Kerry
- Waterford Castle, County Waterford
- Lismore Castle, County Waterford
- Carrickfergus Castle, County Antrim
- Kilkea Castle, County Kildare
- Birr Castle, County Offaly
- Knappogue Castle, County Clare
- Leixlip Castle, County Kildare
- Portumna Castle, County Galway
- Charleville Castle, County Offaly
- Slane Castle, County Meath
- Barberstown Castle, County Kildare
- Castle Ward, County Down
This is just a small sampling, and there are many more castles, forts, and historical sites to discover throughout Ireland. If you're planning a visit, consider exploring regional lists or contacting local tourism offices for a more comprehensive guide to castles in specific areas of interest
