| Lachaux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lachaux (Puy-de-Dôme).svg |
| Arrondissement: | Thiers |
| Canton: | Maringues |
| Insee: | 63184 |
| Postal Code: | 63290 |
| Mayor: | Michel Couperier[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.9947°N 3.5936°W |
| Elevation M: | 600 |
| Elevation Min M: | 417 |
| Elevation Max M: | 947 |
| Area Km2: | 22.27 |
Lachaux (in French pronounced as /laʃo/) is a commune in the Puy-de-Dôme department in Auvergne in central France.