Montaigu or Montaigut may refer to:

Places

Belgium

• the French exonym for Scherpenheuvel

France

• Montaigu, Aisne, in the Aisne département
• Montaigu, Jura, in the Jura département
• Montaigu, Vendée, in the Vendée département
• Montaigu-de-Quercy, in the Tarn-et-Garonne département
• Montaigu-la-Brisette, in the Manche département
• Montaigu-le-Blin, in the Allier département
• Montaigu-les-Bois, in the Manche département
• Montaigu-Vendée, in the Vendée département
• Montaigut, Puy-de-Dôme, in the Puy-de-Dôme département
• Montaigut-le-Blanc, Creuse, in the Creuse département
• Montaigut-le-Blanc, Puy-de-Dôme, in the Puy-de-Dôme département
• Montaigut-sur-Save, in the Haute-Garonne département
• Château de Montaigut at Gissac in the Aveyron département

Other uses

• Collège de Montaigu, a constituent college of the Faculty of Arts of the University of Paris
• Counts of Montaigu, a French noble family of the 11th and 12th centuries
• Sofia Achaval de Montaigu, Argentine designer, stylist, editor, and model
• Thibault de Montaigu, French writer and journalist