| Montigny-sur-Crécy | |
| Commune Status: | Commune |
| Arrondissement: | Laon |
| Canton: | Marle |
| Insee: | 02517 |
| Postal Code: | 02270 |
| Mayor: | Jean-Michel Wattier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de la Serre |
| Coordinates: | 49.7167°N 3.5856°W |
| Elevation M: | 110 |
| Elevation Min M: | 55 |
| Elevation Max M: | 124 |
| Area Km2: | 8.53 |
Montigny-sur-Crécy (in French pronounced as /mɔ̃tiɲi syʁ kʁesi/, literally Montigny on Crécy) is a commune in the Aisne department in Hauts-de-France in northern France.