| Saint-Martin-en-Bière | |
| Commune Status: | Commune |
| Coordinates: | 48.4381°N 2.5681°W |
| Insee: | 77425 |
| Postal Code: | 77630 |
| Arrondissement: | Fontainebleau |
| Canton: | Fontainebleau |
| Mayor: | Véronique Femenia[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays de Fontainebleau |
| Elevation Min M: | 64 |
| Elevation Max M: | 90 |
| Area Km2: | 7.81 |
Saint-Martin-en-Bière (in French pronounced as /sɛ̃ maʁtɛ̃ ɑ̃ bjɛʁ/) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.
Inhabitants of Saint-Martin-en-Bière are called San-Martinois.