| Jumencourt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Jumencourt (Aisne).svg |
| Arrondissement: | Laon |
| Canton: | Vic-sur-Aisne |
| Insee: | 02395 |
| Postal Code: | 02380 |
| Mayor: | Rodrigue Marouze[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Picardie des Châteaux |
| Coordinates: | 49.5094°N 3.3547°W |
| Elevation M: | 68 |
| Elevation Min M: | 51 |
| Elevation Max M: | 168 |
| Area Km2: | 6.2 |
Jumencourt (in French pronounced as /ʒymɑ̃kuʁ/) is a commune in the Aisne department in Hauts-de-France in northern France.
The river Ailette forms all of the commune's southern border.