The 1975 Phillip Island 500K was an endurance race for Touring Cars complying with CAMS Group C regulations. The event was held at the Phillip Island circuit in Victoria, Australia on 23 November 1975. Race distance was 106 laps of the 4.73 km circuit for a race distance of 501 km. There were 48 starters in the event, which event was the fifth and final round of the 1975 Australian Manufacturers' Championship.