| Fagnières | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Fagnières (Marne).svg |
| Arrondissement: | Châlons-en-Champagne |
| Canton: | Châlons-en-Champagne-1 |
| Insee: | 51242 |
| Postal Code: | 51510 |
| Mayor: | Denis Fenat[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Châlons-en-Champagne |
| Coordinates: | 48.9642°N 4.3192°W |
| Elevation M: | 85 |
| Elevation Min M: | 77 |
| Elevation Max M: | 122 |
| Area Km2: | 19.48 |
Fagnières (pronounced as /fr/) is a commune in the Marne department in north-eastern France.