| Kastelhorn | |
| Other Name: | Punta del Castel |
| Elevation M: | 3128 |
| Prominence M: | 32 |
| Prominence Ref: | [1] |
| Parent Peak: | Basòdino |
| Range: | Lepontine Alps |
| Location: | Ticino, Switzerland Piedmont, Italy |
| Map: | Switzerland |
| Coordinates: | 46.4225°N 8.4578°W |
The Kastelhorn (also known as Punta del Castel) is a mountain of the Lepontine Alps, located on the border between Switzerland and Italy. It lies north of the Basòdino.