| Billy-sur-Ourcq | |
| Commune Status: | Commune |
| Arrondissement: | Soissons |
| Canton: | Villers-Cotterêts |
| Insee: | 02090 |
| Postal Code: | 02210 |
| Mayor: | Françoise Emond[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Oulchy le Château |
| Coordinates: | 49.2186°N 3.3025°W |
| Elevation M: | 153 |
| Elevation Min M: | 105 |
| Elevation Max M: | 194 |
| Area Km2: | 10.17 |
Billy-sur-Ourcq is a commune in the department of Aisne in Hauts-de-France in northern France.