| Guiers Vif | |
| Pushpin Map: | France#France Auvergne-Rhône-Alpes |
| Subdivision Type1: | Countries |
| Subdivision Name1: | France |
| Source1: | Cirque de Saint-Même |
| Mouth: | Guiers |
| Progression: | Guiers→ |
| Length: | 16.9km (10.5miles) |
The Guiers Vif (in French pronounced as /ɡje vif/, literally live Guiers) is a river in Auvergne-Rhône-Alpes in eastern France.[1] It is located in the Regional Natural Park of Chartreuse, on the border between the municipalities of Saint-Pierre-d'Entremont (Isère) and Saint-Pierre-d'Entremont (Savoie). Its source is in the Cirque de Saint-Même. It flows towards the northwest. For most of its course, the river forms the border between the departments of Isère and Savoie. Near the communes of Entre-deux-Guiers and Les Echelles, it ends after 16.9km (10.5miles) as a right tributary of the Guiers.