| Hagnicourt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Hagnicourt.svg |
| Arrondissement: | Rethel |
| Canton: | Signy-l'Abbaye |
| Insee: | 08205 |
| Postal Code: | 08430 |
| Mayor: | Olivier Lambert[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Crêtes Préardennaises |
| Coordinates: | 49.6094°N 4.5858°W |
| Elevation M: | 234 |
| Area Km2: | 5.75 |
Hagnicourt (in French pronounced as /aɲikuʁ/) is a commune in the Ardennes department and Grand Est region of north-eastern France.