<page_title> List of Prime Ministers of Australia by age </page_title> <section_title> Overview </section_title> <table> <cell> Harold Holt <col_header> Prime Minister </col_header> </cell> <cell> 57 years, 174 days <col_header> Age </col_header> </cell> </table>
Harold Holt at the age of 57, was the fourth-oldest man to assume the office.