Dublin
The city of Dublin.
Belfast.
That question could be interpreted in different ways. Dublin is the biggest city. Cork is the biggest county. Munster is the biggest province. The Republic of Ireland is larger than Northern Ireland.
Derry.
Londonderry.
DublinIn the republic of Ireland it would be Dublin.In northern Ireland it would be Belfast
The county of Mayo is much bigger than the county of Dublin. Mayo is the third largest county in Ireland and Dublin is the third smallest county in Ireland. The city of Dublin is larger than the town of Mayo.
Cork is a county and a city in Ireland. It is on the south coast and in the province of Munster. It is the biggest county in Ireland.
Ireland-north and republic and Scotland
Derry.
North thumberland