| Châtelus | |
| Commune Status: | Commune |
| Arrondissement: | Montbrison |
| Canton: | Feurs |
| Insee: | 42055 |
| Postal Code: | 42140 |
| Mayor: | Alain Viricel[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Monts du Lyonnais |
| Coordinates: | 45.5967°N 4.4664°W |
| Elevation M: | 692 |
| Elevation Min M: | 550 |
| Elevation Max M: | 788 |
| Area Km2: | 2.53 |
Châtelus (in French pronounced as /ʃatly/) is a commune in the Loire department in central France.