| Attancourt | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Dizier |
| Canton: | Wassy |
| Insee: | 52021 |
| Postal Code: | 52130 |
| Mayor: | Bernadette Galicher[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Grand Saint-Dizier, Der et Vallées |
| Coordinates: | 48.5272°N 4.9303°W |
| Elevation M: | 159 |
| Elevation Min M: | 149 |
| Elevation Max M: | 211 |
| Area Km2: | 10.02 |
Attancourt (pronounced as /fr/) is a commune in the Haute-Marne department in the Grand Est region in northeastern France.
The river Blaise flows through the commune.