George Frederick Ainsworth (20 June 1878 – 11 October 1950) was an Australian meteorologist, public servant and businessman who headed one of the component parts of the Australasian Antarctic expedition of 1911–1914.
He was then seconded to Mawson's Antarctic Expedition in the course of which he was in charge of the subantarctic Macquarie Island party for nearly two years – from December 1911 to November 1913.
[1] Ainsworth's rapid rise as a public servant was at least partly as a protégé of Billy Hughes, who was Prime Minister of Australia from 1915 to 1923, and whom he greatly admired.
[1] After incurring considerable financial losses through gambling on horse races, Ainsworth moved to Sydney in about 1937.
There he lived in Vaucluse, New South Wales, ran a delicatessen in Leichhardt, and gave radio talks about his Antarctic experiences.