the first woman to serve as president. Erskine Childers, who died in office, had the shortest presidency of 511 days. Cearbhall Ó Dálaigh, who resigned, served for 674 days. Four presidents have served for two terms, or fourteen years in total: Seán T. O'Kelly, Éamon de Valera, Patrick Hillery, and Mary McAleese. See also President of the Irish Republic Gaisce – The President's Award Seal of the President of Ireland Presidential Standard of Ireland Secretary-General to the President (Ireland) Warrant of Appointment Notes References Sources . Further reading based on External links Politics of the Republic of Ireland Presidents 1938 establishments in Ireland