| Billy-sur-Aisne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Billy sur aisne 02.svg |
| Arrondissement: | Soissons |
| Canton: | Soissons-2 |
| Insee: | 02089 |
| Postal Code: | 02200 |
| Mayor: | Jean-François De Baere[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | GrandSoissons Agglomération |
| Coordinates: | 49.3567°N 3.3839°W |
| Elevation M: | 72 |
| Elevation Min M: | 56 |
| Elevation Max M: | 160 |
| Area Km2: | 7.47 |
Billy-sur-Aisne is a commune in the department of Aisne in Hauts-de-France in northern France.