Robert Ian Viner AO (born 21 January 1933) is an Australian solicitor and barrister, and former politician.
He was the Liberal member for the House of Representatives seat of Stirling from 1972 until his defeat by Labor's Ron Edwards in the 1983 election.
He was Minister for Aboriginal Affairs from 1975 to 1978, Minister for Employment and Youth Affairs from 1978 to 1981βhe was a cabinet minister from November 1980.
In 1981, he was appointed Minister for Industrial Relations and, in April 1982, Minister for Defence Support and Minister Assisting the Minister for Defence and a member of the Defence Council.