The 2008 V8 Supercar Championship Series was the tenth V8 Supercar Championship Series and the twelfth series in which V8 Supercars contested the premier Australian touring car title. The championship began on 21 February at the Clipsal 500 on the streets of Adelaide and concluded on 7 December at Oran Park Raceway. It consisted of 14 rounds covering all states and the Northern Territory of Australia as well as rounds in New Zealand and Bahrain.

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.