| Boyer | |
| Commune Status: | Commune |
| Arrondissement: | Roanne |
| Canton: | Charlieu |
| Insee: | 42025 |
| Postal Code: | 42460 |
| Mayor: | Christine Gasdon[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Charlieu-Belmont |
| Coordinates: | 46.0983°N 4.2103°W |
| Elevation M: | 340 |
| Elevation Min M: | 318 |
| Elevation Max M: | 449 |
| Area Km2: | 5.18 |
Boyer (pronounced as /fr/) is a commune in the Loire department in central France.