The 1978 Rothmans 500 was an endurance motor race for Group C Touring Cars. The event was held at Oran Park in New South Wales, Australia on 4 June 1978 over 222 laps of the 2.7 km circuit, a total distance of 599.4 km. This was the second and last Rothmans 500 race for Touring Cars to be held at Oran Park, the 1977 Rothmans 500 having been the inaugural event.