| Les Vastres | |
| Commune Status: | Commune |
| Arrondissement: | Le Puy-en-Velay |
| Canton: | Mézenc |
| Mayor: | Jean Luc Chambon[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.99°N 4.2617°W |
| Elevation M: | 1100 |
| Elevation Min M: | 777 |
| Elevation Max M: | 1215 |
| Area Km2: | 30.34 |
| Insee: | 43253 |
| Postal Code: | 43430 |
Les Vastres (in French pronounced as /le vastʁ/) is a commune in the Haute-Loire department in south-central France.
The river Lignon du Velay flows through the commune.