Gary Roy Nairn AO (born 3 January 1951) is a former Australian politician. Nairn was born in Sydney, and was educated at Sydney Boys High School from 1963 to 1968 before attending University of New South Wales. He was a surveyor in private practice and managing director of a surveying and mapping consultancy before entering politics. He moved to the Northern Territory where he lived for many years. He was President of the Country Liberal Party between 1990 and 1994, during which time the CLP won two elections with an increased vote.