| Saint-Cosme | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Saint-Cosme (68).svg |
| Arrondissement: | Altkirch |
| Canton: | Masevaux-Niederbruck |
| Insee: | 68293 |
| Postal Code: | 68210 |
| Mayor: | Joël Wies[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.6825°N 7.0639°W |
| Elevation M: | 355 |
| Elevation Min M: | 319 |
| Elevation Max M: | 391 |
| Area Km2: | 2.71 |
Saint-Cosme (in French pronounced as /sɛ̃ kom/; German: Sanct Cosmann) is a commune in the Haut-Rhin department in Alsace in north-eastern France.