| Vallons-de-l'Erdre | |
| Commune Status: | Commune |
| Arrondissement: | Châteaubriant-Ancenis |
| Canton: | Ancenis-Saint-Géréon |
| Insee: | 44180 |
| Postal Code: | 44540 |
| Mayor: | Jean-Yves Ploteau[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays d'Ancenis |
| Coordinates: | 47.5261°N -1.1836°W |
| Area Km2: | 189.21 |
Vallons-de-l'Erdre (in French pronounced as /valɔ̃ də lɛʁdʁ/; Breton: Saonioù-an-Erzh) is a commune in the department of Loire-Atlantique, western France. The municipality was established on 1 January 2018 by merger of the former communes of Saint-Mars-la-Jaille (the seat), Bonnœuvre, Freigné (part of the department of Maine-et-Loire before 2018), Maumusson, Saint-Sulpice-des-Landes and Vritz.[2]