Castlemap

NIR Country

Castles in Northern Ireland

36 landmarks in the Castlemap atlas — every one mapped with a photo and its story, 28 with sourced founding dates, ranked by Wikipedia coverage and real readership.

The most famous castle in Northern Ireland is Hillsborough Castle, ranked #556 of 7,738 in the world — followed by Dunluce Castle and Belfast Castle.

The Castlemap atlas charts 17 castles, 2 fortresses, 7 palaces & châteaux and 10 ruins in Northern Ireland. They span more than 10 centuries — from Clough Castle (founded 1000) to Gosford Castle (2006). Every one is plotted with its photo and story on the interactive castle map of Northern Ireland.

Map of castles in Northern Ireland

On the map they cluster thickest around Belfast — 29 within a 100 km day trip, then Derry (25). The northernmost is Dunseverick Castle, the southernmost Moyry Castle — about 129 km apart.

Planning a visit? Day-trip guides: Castles near Belfast · Castles near Derry.

See them on the map →

When they were built

Of the 36 landmarks mapped in Northern Ireland, 28 carry a sourced founding date. Most were founded in the 17th century — 7 of them. 7 predate 1500 and 12 were built after 1700.

All 36 castles in Northern Ireland

Frequently asked questions

How many castles are in Northern Ireland?

The Castlemap atlas maps 36 landmarks (17 castles · 2 fortresses · 7 palaces & châteaux · 10 ruins) in Northern Ireland — a curated selection of well-documented landmarks from Wikidata, not a count of every fortification ever built.

What is the most famous castle in Northern Ireland?

Hillsborough Castle, ranked #556 of 7,738 worldwide in the atlas's fame ranking, founded in the 18th century.

What is the oldest castle in Northern Ireland?

The oldest dated landmark in the atlas in Northern Ireland is Clough Castle, founded 1000. Earlier structures may have existed — this is the oldest with a documented founding year.

Where are most of the castles in Northern Ireland?

They cluster thickest around Belfast — 29 of the atlas's landmarks within 100 km, then Derry (25).

See also: the most famous castle in every country · the oldest in every country · medieval castles · castle statistics.