Martigné-Ferchaud (French pronunciation: [maʁtiɲe fɛʁʃo]; Breton: Marzhinieg-Houarnruz; Gallo: Marteinyaé-Fèrchaud) is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.

It is believed to have had a small Roman garrison due to its strategic position as a river crossing and as a centre for arms manufacture.

During the feudal period, justice was administered by the local lord, who was required to give service to his sovereign.

The service required of the lord of Martigné Ferchaud was two horsemen fully equipped, while that of Vitre was five men-at-arms.

Though predominantly an area of agriculture, metal smelting and working continued in Martigné from Roman times until the early 20th century.