Taoiseach of Ireland
| No. | Prime Minister | Took office | Left office | Party | |
|---|---|---|---|---|---|
| (2) | 
|
Éamon de Valera
(1882-1975) |
20 March 1957 | 23 June 1959 | Eire |
| 4 | 
|
Jack Lynch
(1917-2001) |
23 June 1959 | 4 November 1963 | Eire |
| 5 | 
|
Patrick Hillery
(1923-2008) |
4 November 1963 | 15 January 1965 | Eire |
| 6 | 
|
Neil Blaney
(1922-1995) |
4 November 1963 | 15 January 1965 | Democratic |
| Act. | 
|
Paddy Mayne
(1915-1976) |
15 January 1965 | 30 April 1965 | Military |
| 7 | 
|
Liam Cosgrove
(1920-2017) |
30 April 1965 | 5 July 1977 | Democratic |
| 8 | 
|
Charles Haughey
(1925-2006) |
5 July 1977 | 4 November 1986 | Eire |
| 8 |
|
Charles Haughey
(1925-2006) |
5 July 1977 | 4 November 1986 | Eire |
TBC