| Saint-Martin-Don | |
| Image Coat Of Arms: | Blason ville fr Saint-Martin-Don 14.svg |
| Arrondissement: | Vire |
| Canton: | Condé-en-Normandie |
| Insee: | 14632 |
| Postal Code: | 14350 |
| Commune: | Souleuvre-en-Bocage |
| Coordinates: | 48.9289°N -0.9442°W |
| Elevation M: | 99 |
| Elevation Min M: | 64 |
| Elevation Max M: | 204 |
| Area Km2: | 7.6 |
| Population: | 255 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Saint-Martin-Don (in French pronounced as /sɛ̃ maʁtɛ̃ dɔ̃/) is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2016, it was merged into the new commune of Souleuvre-en-Bocage.[2]