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
Prime Minister of the Maldives Prime Minister of the Maldives Prime Minister of the Maldives was a public office in the Sultanate of the Maldives and the Republic of the Maldives. Ibrahim Dorhimeyna Kilegefan served as Prime Minister on three occasions between 1883 and 1925. Abdul Majeed Didi served as Prime Minister from 1926 to 1932. Muhammad Fareed Didi served as Prime Minister from 1932 to 1944. Mohamed Amin Didi served as Prime Minister from 1945 to 1952. After restoration of the Sultanate, Ibrahim Ali Didi served as Prime Minister from March 1954 to 1957 and Ibrahim Nasir served as Prime Minister from December 1957