| Piz Blaisun | |
| Elevation M: | 3200 |
| Prominence M: | 235 |
| Prominence Ref: | [1] |
| Parent Peak: | Piz Üertsch |
| Location: | Graubünden, Switzerland |
| Range: | Albula Alps |
| Map: | Switzerland |
| Coordinates: | 46.6032°N 9.8629°W |
Piz Blaisun (3,200 m) is a mountain of the Albula Alps, located north of the Albula Pass in the canton of Graubünden. Its summit is the tripoint between the Val Tuors, the Val d'Alvra (Albula valley) and the Val d'Es-cha.