The Massif de l'Esterel (Occitan Provençal: Esterèu; English: Esterel Massif) is a Mediterranean coastal mountain range in the departments of Var and Alpes-Maritimes on the French Riviera.

Neighbouring cities are Mandelieu-la-Napoule and Cannes on the east, as well as Saint-Raphaël and Fréjus on the west.

The soil and rocks of the range are of volcanic origin, composed mainly of rhyolite,[1] which gives the hills a red color.

The terrain is rugged, with deep ravines and oak forests.

The highest point of the massif is Mont Vinaigre (618 metres or 2,028 feet).