Northern Ireland
Northern Ireland Counties:
County Antrim
County Armagh
County Down
County Fermanagh
County Londonderry
County Tyrone
Northern Ireland Cities:
Belfast
Lisburn
Londonderry
Newry

Northern Ireland, province, part of the United Kingdom of Great Britain and Northern Ireland, situated in the north-eastern portion of the island of Ireland. Northern Ireland is bounded on the north and north-east by the North Channel, on the south-east by the Irish Sea; on the south and west it has a 488 km (303 mi) border with the Republic of Ireland. It includes Rathlin Island in the North Channel and several smaller offshore islands.

Northern Ireland is also known as Ulster, because it comprises six of the nine counties that constituted the former Irish province of Ulster. The total land area of Northern Ireland is 14,160 sq km (5,467 sq mi). Belfast is the capital of Northern Ireland.