Béthonvilliers should not be confused with Bethonvilliers.
| Béthonvilliers | |
| Commune Status: | Commune |
| Arrondissement: | Nogent-le-Rotrou |
| Canton: | Brou |
| Insee: | 28038 |
| Postal Code: | 28330 |
| Mayor: | Claude Épinette[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Perche |
| Coordinates: | 48.2219°N 0.9103°W |
| Elevation M: | 250 |
| Elevation Min M: | 156 |
| Elevation Max M: | 261 |
| Area Km2: | 12.33 |
Béthonvilliers (in French pronounced as /betɔ̃vilje/) is a commune in the Eure-et-Loir department in northern France.