The Republic of Ireland is a parliamentary democracy based on the British model, with a written constitution and a popularly elected president who has mostly ceremonial powers. The government is headed by a prime minister, the Taoiseach, who is appointed by the President on the nomination of the lower house of parliament, the Dáil. Members of the government are chosen from both the Dáil and the upper house of parliament, the Seanad. Its capital is Dublin.

The republic today ranks amongst the wealthiest countries in the world in terms of GDP per capita and in 2015 was ranked the sixth most developed nation in the world by the United Nations' Human Development Index. A period of rapid economic expansion from 1995 onwards became known as the Celtic Tiger period, was brought to an end in 2008 with an unprecedented financial crisis and an economic depression in 2009.