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 Poland and the Civil Service Department. The official residence of the prime minister is Willa Parkowa, located several minutes walk from the Chancellery next to Łazienki Park. However, the previous Prime Minister Donald Tusk chose to reside in the coastal city of Sopot, near his native Gdańsk in Pomeranian Voivodeship. The prime minister receives security from the Government Protection Bureau ("Biuro Ochrony Rządu") while in office, as well as for six months after departing from the Chancellery. Since the inception of the Third Republic, fifteen individuals have occupied the post. The shortest-serving premier was the first government of Waldemar Pawlak, lasting