Robert Murray Hill (born 25 September 1946), is the current Permanent Representative to the United Nations for Australia and a former Australian politician.
Hill was elected as a Liberal member of the Australian Senate from July 1981 to March 2006, representing South Australia. He was born in Adelaide, South Australia, and was educated at the University of Adelaide and the London School of Economics, where he gained a masters degree in law. His father, Murray Hill, was a prominent Liberal member of the South Australian Legislative Council. He was a barrister and solicitor before entering politics. His daughter, Victoria, is an Australian actress.
Hill was elected to the senate in the 1980 federal election and took up his seat on 1st of July 1981. Hill was Vice-President of the Liberal Party in South Australia 1977-79 and President 1985-87. He was a member of the Liberal Party's Federal Executive 1985-87 and 1990-93. He was a member of the Opposition Shadow Ministry 1988-96, holding senior portfolios such as Foreign Affairs 1989-93, Defence 1993-94 and Education, Science and Technology 1994-96. He was Leader of the Opposition in the Senate 1990-96.