| Hergnies | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Hergnies (59) Nord-France.svg |
| Arrondissement: | Valenciennes |
| Canton: | Marly |
| Insee: | 59301 |
| Postal Code: | 59199 |
| Mayor: | Jacques Schneider[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Valenciennes Métropole |
| Coordinates: | 50.475°N 3.523°W |
| Elevation M: | 20 |
| Elevation Min M: | 14 |
| Elevation Max M: | 39 |
| Area Km2: | 10.75 |
Hergnies (in French pronounced as /ɛʁɲi/) is a commune in the Nord department of northern France.[2]