The 2019 Super2 Series was an Australian motor racing competition for Supercars, a support series to the 2019 Supercars Championship. It was the twentieth running of the Supercars Development Series, the second tier of competition in Supercars racing. The series was promoted as the 2019 Dunlop Super2 Series.

The 2019 Supercars Championship was the twenty-first running of the Supercars Championship and the twenty-third series in which Supercars have contested the Australian Touring Car Championship, the premier title in Australian motorsport. The 2019 championship also included the running of the 1,000th Australian Touring Car Championship race, which was contested at the Melbourne 400.