| Col du Lein | |
| Elevation M: | 1623 |
| Traversed: | Unpaved road |
| Location: | Switzerland |
| Range: | Alps |
| Coordinates: | 46.1133°N 7.1592°W |
Col du Lein (el. 1623 m.) is a high mountain pass in the Alps in the canton of Valais in Switzerland. It connects Saxon in the valley of the Rhône with Vollèges in the Val de Bagnes.