| Saint-Dizier-en-Diois | |
| Commune Status: | Commune |
| Arrondissement: | Die |
| Canton: | Le Diois |
| Insee: | 26300 |
| Postal Code: | 26310 |
| Mayor: | Robert Delage[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Diois |
| Coordinates: | 44.515°N 5.4778°W |
| Elevation M: | 1050 |
| Elevation Min M: | 878 |
| Elevation Max M: | 1480 |
| Area Km2: | 13.94 |
Saint-Dizier-en-Diois (in French pronounced as /sɛ̃ dizje ɑ̃ diwa/; Vivaro-Alpine: Sant Disier de Diés) is a commune in the Drôme department in southeastern France.