| Dates in Office | Prime Minister (Taoiseach) |
| 6 December 1922 to 9 March 1932 | |
| 9 March 1932 to 18 February 1948 | |
| 18 February 1948 to 13 June 1951 | |
| 13 June 1951 to 2 June 1954 | |
| 2 June 1954 to 20 March 1957 | |
| 20 March 1957 to 23 June 1959 | |
| 23 June 1959 to 10 November 1966 | |
| 10 November 1966 to 14 March 1973 | |
| 14 March 1973 to 5 July 1977 | |
| 5 July 1977 to 11 December 1979 | |