| Saint-Martin-d'Août | |
| Commune Status: | Commune |
| Arrondissement: | Valence |
| Canton: | Drôme des collines |
| Insee: | 26314 |
| Postal Code: | 26330 |
| Mayor: | Aline Hebert[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.218°N 4.985°W |
| Elevation M: | 373 |
| Elevation Min M: | 250 |
| Elevation Max M: | 423 |
| Area Km2: | 7.67 |
Saint-Martin-d'Août (Sent-Martin-dʼÔs) is a commune in the Drôme department in southeastern France.