Robert Frank Johnson (born 17 October 1943) is a former Australian politician who was a member of the Legislative Assembly of Western Australia from 1993 to 2017. He was elected as a member of the Liberal Party, and served as a minister in the government of Colin Barnett from 2008 to 2012, but resigned from the party in 2016 to sit as an independent. He was defeated at the 2017 election.
