The 2015 Australian Carrera Cup Championship was an Australian motor racing competition for Porsche 911 GT3 Cup cars. It was sanctioned by the Confederation of Australian Motor Sport (CAMS) as a national championship with Porsche Cars Australia Pty Ltd appointed as the Category Manager by CAMS. The title, which was the eleventh Porsche Carrera Cup Australia Championship, was won by Nick Foster.

Porsche Carrera Cup Australia is an Australian motor racing series open to Porsche 911 GT3 Cup cars. First held in 2003, it is administered by Porsche Cars Australia Pty Ltd and is sanctioned by Motorsport Australia as a national championship through to 2015 and as a National Series from 2016-2021. Starting in 2022 the category returned back as a national championship. During its history, Carrera Cup has been a leading support category for the Supercars Championship. New Zealand driver Craig Baird has been the most successful driver, winning the series five times.