Geoffrey Giles

Geoffrey O'Halloran Giles (27 June 1923 – 18 December 1990) was an Australian politician.

Giles was born in Adelaide, South Australia, a son of Hew O'Halloran Giles, and Nellie Cosford Giles (née Verco), eldest daughter of Dr. W. A. Verco. They lived at Thorngate, then "Willyama", Medindie, and he was educated in Victoria at Geelong Grammar School before returning to South Australia to attend the University of Adelaide and Roseworthy College. He became a grazier and cattle breeder, and served in the Royal Australian Air Force from 1942 to 1945 during the Second World War.

In 1959, Giles was elected to a Southern district seat in the Legislative Council as a Liberal and Country League member. In 1964, he resigned to contest the by-election for the Australian House of Representatives seat of Angas, caused by the resignation of Alec Downer; he won the seat as a candidate for the LCL's federal counterpart, the Liberal Party. He held Angas until its abolition in 1977. He then followed most of his constituents into neighboring Wakefield, defeating fellow Liberal Bert Kelly for preselection. Giles served as the member for Wakefield until his retirement in 1983. In 1976 he was Prime Minister Malcolm Fraser's choice to be Speaker of the House of Representatives, however, former Liberal Party leader Billy Snedden secured the support of the party room and became speaker.

Giles died in 1990, aged 67.