| Aulnoy-sur-Aube | |
| Commune Status: | Commune |
| Arrondissement: | Langres |
| Canton: | Villegusien-le-Lac |
| Insee: | 52028 |
| Postal Code: | 52160 |
| Mayor: | Sébastien Odin[1] |
| Term: | 2021 - 2026 |
| Intercommunality: | CC Auberive Vingeanne Montsaugeonnais |
| Coordinates: | 47.8336°N 5.0336°W |
| Elevation M: | 350 |
| Elevation Min M: | 297 |
| Elevation Max M: | 446 |
| Area Km2: | 9.31 |
Aulnoy-sur-Aube (in French pronounced as /o(l)nwa syʁ ob/) is a commune in the Haute-Marne department in the Grand Est region in northeastern France.