| Flaignes-Havys | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Flaignes-Havys 08.svg |
| Arrondissement: | Charleville-Mézières |
| Canton: | Signy-l'Abbaye |
| Insee: | 08169 |
| Postal Code: | 08260 |
| Mayor: | Franck Robquin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Ardennes Thiérache |
| Coordinates: | 49.8194°N 4.4022°W |
| Elevation M: | 2452 |
| Area Km2: | 13.7 |
Flaignes-Havys is a commune in the Ardennes department and Grand Est region of north-eastern France.
The river Sormonne flows east through the northern part of the commune.