The 2015 V8 Supercar season was the nineteenth year in which V8 Supercars contested the senior Australian touring car series. It was the 56th year of touring car racing in Australia since the first runnings of the Australian Touring Car Championship, now known as the International V8 Supercars Championship, and the fore-runner of the present day Bathurst 1000, the Armstrong 500. The series championships were won by Mark Winterbottom (V8 Supercar Championship), Cameron Waters (Dunlop Series) and Liam McAdam (Kumho KVTC) respectively.