Records of Irish heads of government since 1922
The Taoiseach is the head of government of Ireland. Prior to the enactment of the Constitution of Ireland in 1937, the head of government was referred to as the President of the Executive Council. This office was first held by W. T. Cosgrave from 1922 to 1932, and then by Éamon de Valera from 1932 to 1937. By convention Taoisigh are numbered to include Cosgrave, for example Micheál Martin is considered the 15th Taoiseach.Periods in office
Cumulative days served
Length of individual periods
Longevity
Age on entering/leaving office
Listed here are cabinet positions held either before or during holding the office of Taoiseach or President of the Executive Council.Education
Living officeholders
There are currently five living former Taoisigh:
| Taoiseach | Term of office | Date of birth |
| John Bruton | 1994–1997 | |
| Bertie Ahern | 1997–2008 | |
| Brian Cowen | 2008–2011 | |
| Enda Kenny | 2011–2017 | |
| Leo Varadkar | 2017–2020 | |
Timeline of living/deceased officeholders
