| Les Bréviaires | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Les Bréviaires (Yvelines).svg |
| Arrondissement: | Rambouillet |
| Canton: | Rambouillet |
| Insee: | 78108 |
| Postal Code: | 78610 |
| Mayor: | Jacques Formenty[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Rambouillet Territoires |
| Coordinates: | 48.7086°N 1.8147°W |
| Elevation M: | 170 |
| Elevation Min M: | 139 |
| Elevation Max M: | 186 |
| Area Km2: | 19.55 |
Les Bréviaires (in French le.bʁevjɛʁ/) is a commune in the Yvelines department in the Île-de-France region in north-central France.