| Saint-Martin-d'Oney | |
| Commune Status: | Commune |
| Arrondissement: | Mont-de-Marsan |
| Canton: | Mont-de-Marsan-1 |
| Insee: | 40274 |
| Postal Code: | 40090 |
| Mayor: | Philippe Saës[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Mont-de-Marsan Agglomération |
| Coordinates: | 43.9294°N -0.6394°W |
| Elevation M: | 52 |
| Elevation Min M: | 18 |
| Elevation Max M: | 67 |
| Area Km2: | 34.4 |
Saint-Martin-d'Oney (in French pronounced as /sɛ̃ maʁtɛ̃ donɛj/; Occitan (post 1500);: Sent Martin d'Onei) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]