The 2011 International V8 Supercar Championship was an FIA sanctioned international motor racing series for V8 Supercars. It was the thirteenth V8 Supercar Championship Series and the fifteenth series in which V8 Supercars contested the premier Australian touring car title. It was the first since the series was elevated to the 'International category' status by the FIA. The championship began on 10 February in the Middle East at Abu Dhabi's Yas Marina Circuit and finished on 4 December at the Homebush Street Circuit. It was contested over 28 races at 14 events. These events were held in all states of Australia and in the Northern Territory as well as in the United Arab Emirates, and New Zealand. The 52nd Australian Touring Car Championship title was awarded to Jamie Whincup by the Confederation of Australian Motor Sport.

The Supercars Championship currently known as the Repco Supercars Championship under sponsorship, is a touring car racing category in Australia and New Zealand, running as an International Series under Fédération Internationale de l'Automobile (FIA) regulations, governing the sport.