| Saint-Mards-en-Othe | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Saint-Mards-en-Othe.svg |
| Arrondissement: | Troyes |
| Canton: | Aix-Villemaur-Pâlis |
| Insee: | 10350 |
| Postal Code: | 10160 |
| Mayor: | Lionel Bertin[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.1736°N 3.8°W |
| Elevation M: | 172 |
| Area Km2: | 31.4 |
Saint-Mards-en-Othe (in French pronounced as /sɛ̃ maʁ ɑ̃.n‿ɔt/) is a commune in the Aube department in north-central France.