Castle ruins in County Antrim

Castle ruins in and around County Antrim: 3 listed. Walls, towers and crumbling gatehouses left to the weather — often free to wander and the most atmospheric photo stops of all.

Common questions

How many castle ruins are there in and around County Antrim?

3 — each with its location on the map, what it is, and the visiting details we could confirm.

Are castle ruins in and around County Antrim free to visit?

None are confirmed free yet, and 1 is ticketed. For the rest, entry is not confirmed yet — check each listing.