The 2018 Supercars Championship (known for commercial reasons as the 2018 Virgin Australia Supercars Championship) was an FIA-sanctioned international motor racing series for Supercars. It was the twentieth running of the Supercars Championship and the twenty-second series in which Supercars have contested the premier Australian touring car title. Teams and drivers competed in thirty-one races at sixteen venues across Australia and New Zealand for the championship titles. Scott McLaughin won his maiden title at the final race in Newcastle, while Red Bull Holden Racing Team won the Teams Championship at Pukekohe.