The 2023 4 Hours of Le Castellet was an endurance sportscar racing event held between 14 and 16 July 2023, as the second round of the 2023 European Le Mans Series season.
The pre-event entry list consisted of 42 entries in 4 categories - 7 in LMP2, 11 in LMP2 Pro/Am, 12 in LMP3 and 12 in LMGTE.
Mathias Lüthen replaced Nick Moss in the No. 10 Eurointernational. In the No. 31 Racing Spirit of Léman Fabien Michal was replaced by Jean-Ludovic Foubert. Nicklas Nielsen replaced Mikkel Mac in the No. 50 Formula Racing.
Pole position winners in each class are marked in bold.
The minimum number of laps for classification (70% of overall winning car's distance) was 88 laps. Class winners are marked in bold.