| Piz Mezzaun | |
| Elevation M: | 3000 |
| Prominence M: | 216 |
| Prominence Ref: | [1] |
| Parent Peak: | Munt Cotschen |
| Location: | Graubünden, Switzerland |
| Range: | Livigno Range |
| Map: | Switzerland |
| Label Position: | left |
| Coordinates: | 46.5667°N 9.9794°W |
Piz Mezzaun (western summit: 2,963 m, eastern summit: 3,000 m) is a mountain in the Livigno Range of the Alps, located east of La Punt Chamues-ch in the canton of Graubünden. It lies on the range north of the Chamuera valley.