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taoiseach
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English pronunciation:
TEE-shok
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taoiseach

Irish government
Written and fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
Britannica Editors
Last updated
•History

News •

‘People will die’: The secret recording, the Taoiseach and turmoil at Cork’s main hospital • Nov. 7, 2026, 1:04 AM ET (Irish Times)
Ireland proposes options for reunification • Nov. 4, 2026, 10:12 AM ET (The Telegraph)
Taoiseach to set up initiative on constitutional future of the island • Nov. 3, 2026, 4:42 PM ET (BBC)
Government working on ‘very serious case’ of sexually exploited teen, Taoiseach tells Dáil • Oct. 21, 2026, 9:05 AM ET (Irish Times)
‘Damaging’ to claim White Paper and Citizens’ Assembly will deliver Irish unity, Taoiseach says • Oct. 18, 2026, 2:21 PM ET (Irish Times)

taoiseach, head of government of Ireland. The office of taoiseach (prime minister) was created by the Irish constitution of December 29, 1937. Executive power in the Irish government is vested in the taoiseach, who heads the cabinet and presides over its meetings. The taoiseach must be a member of the Dáil Éireann (House of Representatives), the lower house of the Oireachtas (Parliament).

Taoiseachs of Ireland
name term party
Eamon de Valera 1937–48 Fianna Fáil
John Costello 1948–51 Fine Gael
Eamon de Valera 1951–54 Fianna Fáil
John Costello 1954–57 Fine Gael
Eamon de Valera 1957–59 Fianna Fáil
Seán F. Lemass 1959–66 Fianna Fáil
Jack Lynch 1966–73 Fianna Fáil
Liam Cosgrave 1973–77 Fine Gael
Jack Lynch 1977–79 Fianna Fáil
Charles Haughey 1979–81 Fianna Fáil
Garret FitzGerald 1981–82 Fine Gael
Charles Haughey 1982 Fianna Fáil
Garret FitzGerald 1982–87 Fine Gael
Charles Haughey 1987–92 Fianna Fáil
Albert Reynolds 1992–94 Fianna Fáil
John Bruton 1994–97 Fine Gael
Bertie Ahern 1997–2008 Fianna Fáil
Brian Cowen 2008–11 Fianna Fáil
Enda Kenny 2011–17 Fine Gael
Leo Varadkar 2017–20 Fine Gael
Micheál Martin 2020–22 Fianna Fáil
Leo Varadkar 2022–24 Fine Gael
Simon Harris 2024– Fine Gael
The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Amy Tikkanen.