The 2019 Melbourne 400 (known for sponsorship purposes as the Beaurepaires Melbourne 400) was a motor racing event for the Supercars Championship held as a support event to the 2019 Australian Grand Prix from 14 March to 17 March 2019. It was held at the Melbourne Grand Prix Circuit and consisted of two races of 70 kilometres and two races of 130 kilometres. It was the second event of fifteen in the 2019 Supercars Championship and the second running of the Melbourne 400 event.