Baile Atha Cliath or Dublin.
- capital of Ireland: seaport on the Irish Sea: pop. 478,000
- county in Leinster province, E Ireland, on the Irish Sea: 356 sq mi (922 sq km); pop. 1,025,000; county seat, Dublin
The capital and largest city of Ireland, in the eastern part of the country on the Irish Sea. Founded by the Norse in the ninth century, it was under English control after 1171. In the 1900s, as Ireland gained its independence, Dublin emerged as a literary and cultural center.