| Name | Term Start | Term End | Notes |
| Edmund Barton | 1901 | 1903 | First Prime Minister of Australia. |
| Alfred Deakin | 1903 | 1904 | Served three non-consecutive terms. |
| John Howard | 1904 | 1905 | Short term, focused on economic issues. |
| George Reid | 1905 | 1908 | Known for his opposition to Labor policies. |
| Andrew Fisher | 1908 | 1915 | Served two terms; significant wartime leader. |
| Billy Hughes | 1915 | 1923 | Prime Minister during World War I. |
| Stanley Bruce | 1923 | 1929 | Focused on economic recovery post-war. |
| James Scullin | 1929 | 1932 | Led during the Great Depression. |
| Joseph Lyons | 1932 | 1939 | Known for his unity government. |
| Robert Menzies | 1939 | 1941 | First term; returned for a second term later. |
| John Curtin | 1941 | 1945 | Prime Minister during World War II. |
| Ben Chifley | 1945 | 1949 | Focused on post-war reconstruction. |
| Robert Menzies | 1949 | 1966 | Longest-serving Prime Minister in Australian history. |
| Harold Holt | 1966 | 1967 | Disappeared while swimming; presumed drowned. |
| John Gorton | 1968 | 1971 | Known for his leadership during Vietnam War protests. |
| William McMahon | 1971 | 1972 | Last Prime Minister of the Liberal Party before the 1972 election. |
| Gough Whitlam | 1972 | 1975 | Implemented significant reforms; dismissed in 1975. |
| Malcolm Fraser | 1975 | 1983 | Took office after Whitlam’s dismissal. |
| Bob Hawke | 1983 | 1991 | Known for economic reforms and strong leadership. |
| Paul Keating | 1991 | 1996 | Continued economic reforms, including GST introduction. |
| John Howard | 1996 | 2007 | Major domestic reforms; significant foreign policy shifts. |
| Kevin Rudd | 2007 | 2010 | Apologized to Indigenous Australians. |
| Julia Gillard | 2010 | 2013 | First female Prime Minister; focused on education reforms. |
| Kevin Rudd | 2013 | 2013 | Returned for a brief second term. |
| Tony Abbott | 2013 | 2015 | Focused on stopping the boats policy. |
| Malcolm Turnbull | 2015 | 2018 | Emphasized innovation and economic growth. |
| Scott Morrison | 2018 | 2022 | Led during the COVID-19 pandemic. |
| Anthony Albanese | 2022 | Present | Focused on climate action and social issues. |