List of Australian Prime Ministers by age List of officeholders List of officeholders

| _ | Prime_Minister | Date_of_birth | Start_date_of_first_term | Age_at_beginning_of_first_term | End_date_of_final_term | Total_time_in_office | Date_of_death | Lifespan_ |
|---|---|---|---|---|---|---|---|---|
| 16 | Ben Chifley | 22 September 1885 | 13 July 1945 | 59 years, 294 days | 19 December 1949 | 1,620 days | 13 June 1951 | 24,004 days (65 years, 264 days) |
| 17 | Harold Holt | 5 August 1908 | 26 January 1966 | 57 years, 174 days | 19 December 1967 | 690 days | 17 December 1967 | 21,683 days (59 years, 134 days) |
| 18 | John McEwen | 29 March 1900 | 19 December 1967 | 67 years, 265 days | 10 January 1968 | 22 days | 20 November 1980 | 29,456 days (80 years, 236 days) |
| 19 | John Gorton | 9 September 1911 | 10 January 1968 | 56 years, 123 days | 10 March 1971 | 1,155 days | 19 May 2002 | 33,125 days (90 years, 252 days) |