List of Australian heads of government by time in office Historical premiers Historical premiers

| Rank_ | State_ | Premier_ | Party_ | Assumed_office_ | Left_office_ | TOTAL_Time_in_office_ |
|---|---|---|---|---|---|---|
| 7. | NSW | Sir Henry Parkes (1815–1896) GCMG | Free Trade | 25 January 1887 | 16 January 1889 | 11 years, 278 days. |
| 7. | NSW | Sir Henry Parkes (1815–1896) GCMG | Free Trade | 8 March 1889 | 23 October 1891 | 11 years, 278 days. |
| 8. | VIC | Sir Albert Dunstan (1882–1950) KCMG | Country Party of Australia | 2 April 1935 | 14 September 1943 | 10 years, 179 days |
| 8. | VIC | Sir Albert Dunstan (1882–1950) KCMG | Country Party of Australia | 18 September 1943 | 2 October 1945 | 10 years, 179 days |
| 9. | QLD | Sir Francis Nicklin (1895–1978) KCMG , MM | Country Party of Australia | 12 August 1957 | 17 January 1968 | 10years, 158days |
| 10. | NSW | Bob Carr (1947– ) | Australian Labor Party | 4 April 1995 | 3 August 2005 | 10years, 121days |