Ireland (Irish: Éire, ) is a country in north-western Europe. The modern sovereign state occupies five-sixths of the island of Ireland, which was partitioned in 1921. It is bordered by Northern Ireland (part of the United Kingdom) to the north, by the Atlantic Ocean to the west and by the Irish Sea to the east. Legally, the term Republic of Ireland (Irish: Poblacht na hÉireann) is the description of the State but Ireland is its name.

Ireland is one of the richest, most developed and peaceful countries on earth, having the fifth highest Gross Domestic Product per capita, second highest Gross Domestic Product (Purchasing Power Parity) per capita and having the fifth highest Human Development Index rank. The country also boasts the highest quality of life in the world, ranking first in the Economist Intelligence Unit’s Quality-of-life index. Ireland was ranked fourth on the Global Peace Index. The state also has high rankings for its education system, political freedom and civil rights, press freedom and economic freedom; it was also ranked fourth from the bottom on the Failed States Index, being one of the few "sustainable" states in the world.

The state is a member of the EU, the OECD and the UN. The State's policy of neutrality means it is not a member of NATO. Ireland's population is the fastest growing in Europe, with an annual growth rate of 2.5%.

However, after a debt-funded construction boom in the last decade, economic growth is now slowing. Ireland now has the second-highest level of household debt in the world, at 190% of household income.