Martigues is a commune northwest of Marseille. It is part of the Bouches-du-Rhône department in the Provence-Alpes-Côte d'Azur region on the eastern end of the Canal de Caronte.

Bouches-du-Rhône is a department in southern France. It borders Vaucluse to the north, Gard to the west and Var to the east. The Mediterranean Sea lies to the south. Its prefecture and largest city is Marseille; other important cities include Aix-en-Provence, Arles, Martigues and Aubagne.