| Châtillon-lès-Sons | |
| Commune Status: | Commune |
| Arrondissement: | Laon |
| Canton: | Marle |
| Insee: | 02169 |
| Postal Code: | 02270 |
| Mayor: | François Venet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de la Serre |
| Coordinates: | 49.7594°N 3.685°W |
| Elevation M: | 157 |
| Elevation Min M: | 80 |
| Elevation Max M: | 151 |
| Area Km2: | 10.56 |
Châtillon-lès-Sons (pronounced as /fr/, literally Châtillon near Sons) is a commune in the Aisne department in Hauts-de-France in northern France.