| • Science | • People | • Locations | • Timeline |
| # | Name | Took Office | Left Office | Party |
|---|---|---|---|---|
| 1. | W.T. Cosgrave | April 2, 1919 | September 9, 1922 | Sinn Féin |
| 2. | Ernest Blythe | August 30, 1922 | October 15, 1923 | Pro-Treaty Sinn Féin |
| 3. | Ernest Blythe | October 15, 1922 | June 2June 2 is the 153rd day of the year in the Gregorian calendar (154th in leap years), with 212 days remaining. Events 455 The Vandals enter Rome, and plunder the city for two weeks. They depart with countless valuables, spoils of the Temple in Jerusalem br, 1924Centuries: 19th century 20th century 21st century Decades: 1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s Years: 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 See also 1924 in aviation 1924 in film 1924 in literature 1924 in mu | Cumann na nGaedhael |
| # | Name | Took Office | Left Office | Party |
|---|---|---|---|---|
| Ernest Blythe | June 2June 2 is the 153rd day of the year in the Gregorian calendar (154th in leap years), with 212 days remaining. Events 455 The Vandals enter Rome, and plunder the city for two weeks. They depart with countless valuables, spoils of the Temple in Jerusalem br, 1924 | June 23, 1927 | Cumann na nGaedhael | |
| 4. | Richard Mulcahy | June 23, 1927 | March 9, 1932 | Cumann na nGaedhael |
| 5. | Seán T. O'Kelly | March 9, 1932 | September 8, 1939 | Fianna Fáil |
| 6. | P.J. Ruttledge | September 8, 1939 | August 14, 1941 | Fianna Fáil |
| 7. | Eamon de Valera (acting) | August 15, 1941 | August 18, 1941 | Fianna Fáil |
| 8. | Seán MacEntee | August 18, 1941 | January 22, 1947 | Fianna Fáil |