Prime Minister of Australia prime minister, otherwise William McMahon63. Robert Menzies was the oldest person to ever be prime minister, leaving office at 71 years old. The longest-serving Prime Minister was Sir Robert Menzies, who served in office twice: from 26 April 1939 to 28 August 1941, and again from 19 December 1949 to 26 January 1966. In total Robert Menzies spent 18 years, 5 months and 12 days in office. He served under the United Australia Party and the Liberal Party respectively. The shortest-serving Prime Minister was Frank Forde, who was appointed to the position on 6 July 1945 after the death of
Deputy Prime Minister of Malaysia Deputy Prime Minister of Malaysia The Deputy Prime Minister of Malaysia () is the second highest political office in Malaysia. There have been twelve deputy prime ministers since the office was created in 1957. The first Prime Minister of Malaysia, Tunku Abdul Rahman, started the convention of appointing a Deputy Prime Minister. The current Deputy Prime Minister is Wan Azizah Wan Ismail, who took office on 10 May 2018, she is the first female to hold office. Although Malaysia has always had a Deputy Prime Minister since independence, a Prime Minister may choose not to appoint a Deputy Prime Minister.