| Rengg | |
| Elevation M: | 959 |
| Location: | Switzerland |
| Range: | Alps |
| Coordinates: | 47.0038°N 8.0908°W |
Rengg is a locality and a mountain pass in the canton of Lucerne in Switzerland.
It connects Schachen, part of Werthenstein, and Entlebuch. It lies partially in the district of Entlebuch which is a biosphere preserve recognized by UNESCO.