Rock of Cashel at sunset, County Tipperary

Guide by Category

CastlesFortresses, tower houses and stately homes, from Blarney to Malahide

Ireland's castles aren't just grand stone structures dotting the landscape. Each one tells a different story — invasions, great battles between families for control of a territory, what daily life was like for the people who lived there, what dangers they guarded against, and what they believed. Some still stand watch over old and fascinating legends. Many survive today as ivy-covered ruins — like Dunluce — while others remain inhabited and still carry the marks of their history, like Malahide.

Map of Ireland split into its 4 provinces — click a province to jump to it belowUlsterConnachtLeinsterMunsterClick a province ↑

The first Anglo-Norman castles are thought to have become part of the Irish landscape around the time the invaders arrived in 1169. At first these structures were built from earth and timber, used to defend the territories being conquered. But over time the material was replaced by stone. Thousands were built across the island for different purposes — some were watchtowers, fortified houses, churches, abbeys, bridges, walls, and more.

This guide brings together castles from different eras of Irish history, ranging from imposing medieval fortresses and clan or family residences to elegant 19th-century Victorian castles. On our interactive map, you can find each castle's location, learn its history and legends, and get everything you need to know if you decide to visit.

Each destination's full page is currently only available in Spanish — clicking a card takes you to the Spanish-language write-up. To browse in English instead, try the interactive map.

Explore the Castles

Leinster

7 places · Offaly, Dublin, Kilkenny, Meath, Laois
Birr Castle
Spanish only

Birr Castle

Offaly · Home of the Great Telescope, the world's largest for over seventy years.

Dublin Castle
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Dublin Castle

Dublin · Built on the site of an old Viking fortress.

Kilkenny Castle
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Kilkenny Castle

Kilkenny · Norman castle beside the River Nore.

Leap Castle
Spanish only

Leap Castle

Offaly · Ireland's most haunted castle.

Malahide Castle
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Malahide Castle

Dublin · Castle and gardens near Dublin.

Trim Castle
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Trim Castle

Meath · Ireland's largest castle.

Rock of Dunamase
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Rock of Dunamase

Laois · A limestone-crag fortress that was part of Aoife's dowry when she married Strongbow in 1170 — guarded, local legend says, by a fire-breathing fairy hound.

Ulster

4 places · Antrim, Donegal
Carrickfergus Castle
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Carrickfergus Castle

Antrim · One of Ireland's best-preserved medieval castles, built in 1177.

Donegal Castle
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Donegal Castle

Donegal · Gaelic-Norman stronghold of the O'Donnell clan, lords of Tyrconnell.

Dunluce Castle
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Dunluce Castle

Antrim · Dramatic ruin on the cliffs.

Glenveagh Castle
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Glenveagh Castle

Donegal · Victorian castle surrounded by lakes and mountains in Glenveagh National Park.

Connacht

4 places · Mayo, Galway, Sligo
Ashford Castle
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Ashford Castle

Mayo · On the shores of Lough Corrib.

Dunguaire Castle
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Dunguaire Castle

Galway · 16th-century tower on Galway Bay, centre of the Irish literary revival.

Kylemore Abbey
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Kylemore Abbey

Galway · Victorian castle turned Benedictine abbey beside a lake in Connemara.

Castillo de Markree
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Castillo de Markree

Sligo · 352 years in the Cooper family; home to the world's largest telescope in 1830.

Munster

10 places · Cork, Clare, Tipperary, Limerick, Kerry, Waterford
Blarney Castle
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Blarney Castle

Cork · The most visited castle, famous for its Stone of Eloquence.

Bunratty Castle
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Bunratty Castle

Clare · Built on the site of an old Viking camp.

Cahir Castle
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Cahir Castle

Tipperary · One of Ireland's best-preserved castles.

King John's Castle
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King John's Castle

Limerick · Built on Limerick's original Viking settlement.

Rock of Cashel
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Rock of Cashel

Tipperary · A dramatic cluster of medieval buildings on a limestone outcrop, seat of the Kings of Munster.

Ross Castle
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Ross Castle

Kerry · 15th-century tower on the shores of Lough Leane, in Killarney National Park.

Ormond Castle
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Ormond Castle

Tipperary · Elizabethan manor Thomas Butler built to tempt his cousin, Queen Elizabeth I, into visiting Ireland.

Dungarvan Castle
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Dungarvan Castle

Waterford · 13th-century Norman keep still bearing the scars of the Irish Civil War.

Lismore Castle
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Lismore Castle

Waterford · Irish home of the Dukes of Devonshire, where a medieval manuscript lay hidden inside a wall.

Strancally Castle
Spanish only

Strancally Castle

Waterford · A Gothic-revival mansion built in 1830 over a Geraldine Norman stronghold on the River Blackwater — and, Irish media reported in 2026, Mark Zuckerberg's new Irish home.

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This place is only available in Spanish. Use the Español button at the top of the page to browse the Spanish site.