Castle ruins in County Antrim.
- former county of NE Northern Ireland: c. 1,176 sq mi (3,046 sq km)
- district in NE Northern Ireland, in the S part of the former county: 221 sq mi (572 sq km); pop. 45,000
- A county in the north-east of Northern Ireland, also known as County Antrim
- The administrative centre of County Antrim