| Helpe Majeure | |
| Pushpin Map: | France#France Hauts-de-France |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Mouth: | Sambre |
| Mouth Coordinates: | 50.1725°N 3.7962°W |
| Length: | 69.1km (42.9miles) |
| Discharge1 Avg: | 3.86m3/s |
| Basin Size: | 329km2 |
Helpe Majeure (pronounced as /fr/) is a river that runs through the Nord department in the Hauts-de-France region of France. It rises in the municipality of Ohain, with about a third of its watershed in Belgium, near the town of Momignies. The river initially marks the Franco-Belgian border as it flows north. Then it turns west and flows for 69km (43miles) to its confluence north of Noyelles-sur-Sambre, as a southern tributary of the Sambre.[1]