Martinet (French pronunciation: [maʁtinɛ] ⓘ) is a commune in the Vendée department in the Pays de la Loire region in western France.

It is located on the plateau of the south of the Armorican Massif, in the Bas-Bocage Vendéen, behind the coast, about twenty-five kilometers from Les Sables-d'Olonne and Saint-Gilles-Croix-de-Vie.

The streams of Malvergne, Guy des Noues and Garangeoire have formed other small valleys that join the Jaunay.

The consolidation has not affected it in any way and many wooded areas, as well as old paths little retouched, have preserved a green space and an endearing nature.

Numerous discoveries of Neolithic axes have been made in the Aigrefeuilles and Maison Neuve sectors, in the southern part of the town which is also occupied by a vast area which has remained wooded, the Bois-Neuf.

Then they accompanied him more or less regularly in his various military campaigns on the territory of the Vendée, under the leadership of their first mayor and parish captain Jacques Martin.