The 1966 Australian Tourist Trophy was a motor race staged at the Longford Circuit in Tasmania, Australia on 7 March 1966. It was the tenth annual Australian Tourist Trophy race. The race was open to sports cars as defined by the Confederation of Australian Motor Sport (CAMS) in its Appendix C regulations, and it was recognized by CAMS as the Australian championship for sports cars. It was won by Frank Matich driving an Elfin 400 Traco Oldsmobile.