| Piz Chapisun | |
| Elevation M: | 2931 |
| Prominence M: | 198 |
| Prominence Ref: | [1] |
| Location: | Graubünden, Switzerland |
| Range: | Silvretta Alps |
| Map: | Switzerland |
| Coordinates: | 46.7939°N 10.1175°W |
Piz Chapisun (2,931 m) is a mountain of the Silvretta Alps, overlooking Lavin in the canton of Graubünden. It lies at the southern end of the range south of Piz Buin, between the Val Lavinuoz and the Val Tuoi.