Who is the longest serving Prime Minister?
Australia’s longest serving Prime Minister is Robert Menzies. He held the office twice, from 1939 to 1941 and from 1949 to 1966. Altogether he was Prime Minister for over 18 years.
Sir Robert Menzies.
John Curtin Prime Ministerial Library (JCPML00036/11)
Description
A portrait of Sir Robert Gordon Menzies.
John Curtin Prime Ministerial Library. Records of the Government Photographic Service. Sir Robert Gordon Menzies, KT,PC,CH (1894-1978) Prime Minister 1939-1941, 1949-1966.