The 2023 GT Cup Open Europe was the fifth season of the GT Cup Open Europe, the grand tourer-style sports car racing series founded by the Spanish GT Sport Organización.
It began on 30 April at the Algarve International Circuit and ended on 22 October at the Circuit de Barcelona-Catalunya after five meetings.
If less than 6 participants start the race or if less than 75% of the original race distance is completed, half points are awarded.
For the Endurance Race (Spa) points are multiplied by 2.
Two (2) best results of each team are counted towards the championship.