Peter James Nixon (born 22 March 1928) is an Australian politician and businessman. He was a member of the National Party. He served in the House of Representatives from 1961 to 1983, representing the Division of Gippsland. He held ministerial office as Minister for the Interior (1967–1971), Shipping and Transport (1971–1972), Postmaster-General (1975), Transport (1975–1979) and Primary Industry (1979–1983).