| Chastreix | |
| Commune Status: | Commune |
| Arrondissement: | Issoire |
| Canton: | Le Sancy[1] |
| Insee: | 63098 |
| Postal Code: | 63680 |
| Mayor: | Michel Babut[2] |
| Term: | 2020 - 2026 |
| Intercommunality: | Massif du Sancy |
| Coordinates: | 45.5128°N 2.7356°W |
| Elevation M: | 1050 |
| Elevation Min M: | 895 |
| Elevation Max M: | 1883 |
| Area Km2: | 45.12 |
Chastreix is a commune in the Puy-de-Dôme department in Auvergne-Rhône-Alpes in central France.
To the northeast of Chastreix is the small ski resort of Chastreix-Sancy.