The 2005 Adelaide 500, known for naming rights reasons as the 2005 Clipsal 500, was a motor race for V8 Supercars held on the weekend of 17 - 20 March 2005. The event was held at the Adelaide Street Circuit in Adelaide, South Australia, and consisted of two races of 250 kilometres in length. It was the first round of thirteen in the 2005 V8 Supercar Championship Series.