| Sion-les-Mines | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Sion-les-Mînes (Loire-Atlantique).svg |
| Arrondissement: | Châteaubriant-Ancenis |
| Canton: | Guémené-Penfao |
| Insee: | 44197 |
| Postal Code: | 44590 |
| Mayor: | Bruno Debray[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Châteaubriant-Derval |
| Coordinates: | 47.7358°N -1.5906°W |
| Elevation Min M: | 17 |
| Elevation Max M: | 88 |
| Area Km2: | 54.71 |
| Demonym: | Sionnaises, Sionnais |
Sion-les-Mines (in French pronounced as /sjɔ̃ le min/; Breton: Hezin-ar-Mengleuzioù) is a commune in the Loire-Atlantique department in western France.
The river Chère flows westward through the commune.