The Taoiseach (/ˈtiːʃəx/; Irish pronunciation: [ˈt̪ˠiːʃəx] ( listen)) is the head of government or prime minister of Ireland. The Taoiseach is appointed by the President upon the nomination of Dáil Éireann, the lower house of the Oireachtas (parliament), and must, in order to remain in office, retain the support of a majority in the Dáil. The current Taoiseach is Enda Kenny, TD who was appointed on 9 March 2011.

The earliest known use of the term is from a 5th- or 6th-century ogham inscription in both Gaelic and British. The plural of taoiseach is taoisigh (Irish pronunciation: [t̪ˠiːʃiː] or [t̪ˠiːʃəɟ]).

Under the Constitution of Ireland, the Taoiseach must be appointed from among the members of Dáil Éireann. He is nominated by a simple majority of the chamber's members, and formally appointed to office by the President. Since the President is required to appoint whomever the Dáil nominates without the right to decline appointment, it is often said that the Taosieach is "elected" by the Dáil.

Enda Kenny (born 24 April 1951) is an Irish Fine Gael politician, and has been the Taoiseach since 2011. He has led Fine Gael since 2002. He served as Minister for Tourism and Trade from 1994 to 1997. He is also a two-term Vice President of the European People's Party.

Kenny has been a Teachta Dála (TD) for Mayo since 1975, having succeeded his father Henry Kenny. He is the longest-serving TD currently in Dáil Éireann, which makes him the incumbent Father of the Dáil.

Kenny led Fine Gael in the 2011 general election. He subsequently brokered an agreement with the Labour Party and formed a coalition government on 9 March 2011. He is Fine Gael's first Taoiseach since John Bruton from 1994 to 1997, and the first Fine Gael leader to win government in an election since Garret FitzGerald in 1982.

Enda Kenny was born in the village of Islandeady near Castlebar, County Mayo in 1951, the third child of five. He was educated locally at St. Patrick's National School in Cornanool and St. Gerald's College (De La Salle) in Castlebar. Kenny subsequently attended St Patrick's College of Education in Dublin and University College Galway. He briefly worked as a primary school teacher, and is a Gaeilgeoir.

Gerry Adams (Irish: Gearóid Mac Ádhaimh; born 6 October 1948 in Belfast, Northern Ireland) is an Irish republican politician and Teachta Dála (TD) for the constituency of Louth. From 1983 to 1992 and from 1997 to 2011, he was an abstentionist Westminster Member of Parliament for Belfast West. He is the president of Sinn Féin, the second largest political party in Northern Ireland and the largest nationalist party. From the late 1980s onwards, Adams was an important figure in the Northern Ireland peace process, initially following contact by the then Social Democratic and Labour Party (SDLP) leader John Hume and subsequently with the Irish and British governments and then other parties. In 2005, the Provisional Irish Republican Army (IRA) indicated that its armed campaign was over and that it is now exclusively committed to democratic politics. Under Adams, Sinn Féin changed its traditional policy of abstentionism towards Oireachtas Éireann, the parliament of the Republic of Ireland, in 1986 and later took seats in the power-sharing Northern Ireland Assembly. However, Sinn Féin retains a policy of abstentionism towards the Westminster Parliament, but since 2002, receives allowances for staff and takes up offices in the House of Commons.