Montignac

Montignac may refer to:

Surname

 * Michel Montignac (1944–2010), French dietician, best known for his Montignac diet

Places in France

 * Montignac, Gironde, in the Gironde department
 * Montignac, Hautes-Pyrénées, in the Hautes-Pyrénées department
 * Montignac-Charente, in the Charente department
 * Montignac-de-Lauzun, in the Lot-et-Garonne department
 * Montignac-Lascaux, in the Dordogne department
 * Montignac-le-Coq, in the Charente department
 * Montignac-Toupinerie, in the Lot-et-Garonne department