Colin John Jamieson, AO JP (26 May 1923 – 27 March 1990), was a politician in Western Australia. A member of the Australian Labor Party, he served as a member of the Western Australian Legislative Assembly from 1953 until 1986, as the Minister for Works and Water Supplies in the Tonkin Ministry (1971–1974) and as Leader of the Opposition (1976–1978). Ron Davies succeeded him in the latter role.