| Pizz Gallagiun | |
| Other Name: | Pizzo Galleggione |
| Elevation M: | 3107 |
| Prominence M: | 413 |
| Prominence Ref: | [1] |
| Parent Peak: | Piz Duan |
| Range: | Oberhalbstein Range |
| Location: | Lombardy, Italy/Graubünden, Switzerland |
| Listing: | Alpine mountains above 3000 m |
| Map: | Alps |
| Coordinates: | 46.3667°N 9.4878°W |
Pizz Gallagiun (also known as Pizzo Galleggione) is a mountain of the Oberhalbstein Range, located on the border between Italy and Switzerland. On its southern side it overlooks the Val Bregaglia. On its northern side it overlooks the Val Madris.