| Crécy-sur-Serre | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Crécy-sur-Serre (Aisne).svg |
| Arrondissement: | Laon |
| Canton: | Marle |
| Insee: | 02237 |
| Postal Code: | 02270 |
| Mayor: | Bertrand Jonneaux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de la Serre |
| Coordinates: | 49.6978°N 3.6233°W |
| Elevation M: | 62 |
| Elevation Min M: | 57 |
| Elevation Max M: | 133 |
| Area Km2: | 17.9 |
Crécy-sur-Serre (in French pronounced as /kʁesi syʁ sɛʁ/, literally Crécy on Serre) is a commune in the Aisne department in Hauts-de-France in northern France.[2]