The 2020 Porsche Mobil 1 Supercup was the 28th Porsche Supercup season, a GT3 production stock car racing series sanctioned by Porsche Motorsports GmbH in the world. It began on 5 July at the Red Bull Ring and ended on 6 September at the Autodromo Nazionale di Monza, after eight scheduled races, all of which were support events for the 2020 Formula One season.