The 2018 European Le Mans Series was the fifteenth season of the Automobile Club de l'Ouest's (ACO) European Le Mans Series. The six-event season began at Circuit Paul Ricard on 15 April and finished at Algarve International Circuit on 28 October. The series is open to Le Mans Prototypes, divided into the LMP2 and LMP3 classes, and grand tourer-style racing cars in the LMGTE class.

The 2017 European Le Mans Series season was the fourteenth season of the Automobile Club de l'Ouest's (ACO) European Le Mans Series. The six-event season began at Silverstone Circuit, in conjunction with the FIA World Endurance Championship, on 15 April and ended at Algarve International Circuit on 22 October.