| La Baume-d'Hostun | |
| Commune Status: | Commune |
| Arrondissement: | Valence |
| Canton: | Vercors-Monts du Matin |
| Insee: | 26034 |
| Postal Code: | 26730 |
| Mayor: | Marion Pelloux-Prayer[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Valence Romans Agglo |
| Coordinates: | 45.0561°N 5.2281°W |
| Elevation Min M: | 148 |
| Elevation Max M: | 760 |
| Area Km2: | 8.46 |
La Baume-d'Hostun (in French pronounced as /la bom dɔstœ̃/; Occitan (post 1500);: La Bauma d'Ostun) is a commune in the Drôme department in southeastern France.