^ Article 4 of the Constitution of Ireland declares that the name of the state is Ireland; Section 2 of the Republic of Ireland Act 1948 declares that Republic of Ireland is "the description of the State".
^ The .eu domain is also used, as it is shared with other European Union member states.

Largest urban centres by population
Dublin Limerick	#	Settlement	Population	#	Settlement	Population	Cork Galway
	1	Dublin	1,110,627	11	Ennis	25,360
	2	Cork	198,582	12	Kilkenny	24,423
	3	Limerick	91,454	13	Tralee	23,693
	4	Galway	76,778	14	Carlow	23,030
	5	Waterford	51,519	15	Newbridge	21,561
	6	Drogheda	38,578	16	Naas	20,713
	7	Dundalk	37,816	17	Athlone	20,153
	8	Swords	36,924	18	Portlaoise	20,145
	9	Bray	31,872	19	Mullingar	20,103
	10	Navan	28,559	20	Wexford	20,072

– in Europe (green & dark grey)
– in the European Union (green)

Ireland (ⁱ/ˈaɪərlənd/; Irish: Éire [ˈeːɾʲə]), also known as the Republic of Ireland (Poblacht na hÉireann), is a sovereign state in north-western Europe occupying about five-sixths of the island of Ireland. The capital and largest city is Dublin, which is located on the eastern part of the island, and whose metropolitan area is home to around a third of the country's 4.75 million inhabitants. The state shares its only land border with Northern Ireland, a part of the United Kingdom. It is otherwise surrounded by the Atlantic Ocean, with the Celtic Sea to the south, Saint George's Channel to the south-east, and the Irish Sea to the east. It is a unitary, parliamentary republic. The legislature, the Oireachtas, consists of a lower house, Dáil Éireann, an upper house, Seanad Éireann, and an elected President (Uachtarán) who serves as the largely ceremonial head of state, but with some important powers and duties. The head of government is the Taoiseach (Prime Minister, literally 'Chief', a title not used in English), who is elected by the Dáil and appointed by the President; the Taoiseach in turn appoints other government ministers.