2015 International V8 Supercars Championship

Mark Winterbottom won his first drivers' championship.
Triple Eight Race Engineering won its sixth consecutive teams' championship.

The 2015 International V8 Supercars Championship (often simplified to the 2015 V8 Supercars Championship) was an FIA-sanctioned international auto racing series for V8 Supercars. It was the seventeenth running of the V8 Supercar Championship Series and the nineteenth series in which V8 Supercars have contested the premier Australian touring car title.

Mark Winterbottom of Prodrive Racing Australia secured his first championship title with one race remaining, winning nine races during the season, while Triple Eight Race Engineering won the Teams' Championship.[1] The Enduro Cup was won by Garth Tander and Warren Luff, driving for the Holden Racing Team.