| Clerve | |
| Mouth Coordinates: | 49.9514°N 6.017°W |
| Subdivision Type1: | Country |
| Length: | 48km (30miles) |
| Source1 Elevation: | 530m (1,740feet) |
| Basin Size: | 222km2 |
| Progression: | Wiltz→ |
The Clerve (Luxembourgish; Letzeburgesch: Klierf) is a river flowing through Luxembourg, joining the Wiltz at Kautenbach. It flows through both the towns of Troisvierges and the town of Clervaux. Upstream of Clervaux, it is known as the Woltz.[1]