| Montaigu-les-Bois | |
| Commune Status: | Commune |
| Arrondissement: | Coutances |
| Canton: | Quettreville-sur-Sienne |
| Insee: | 50336 |
| Postal Code: | 50450 |
| Mayor: | Bruno Launay[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Coutances Mer et Bocage |
| Coordinates: | 48.8936°N -1.2781°W |
| Elevation Min M: | 68 |
| Elevation Max M: | 169 |
| Area Km2: | 6.67 |
| Demonym: | Montaiguais |
Montaigu-les-Bois (in French pronounced as /mɔ̃tɛɡy le bwa/) is a commune in the Manche department in Normandy in north-western France.