| Poncione d'Alnasca | |
| Elevation M: | 2301 |
| Prominence M: | 166 |
| Prominence Ref: | [1] |
| Parent Peak: | Cima di Gagnone |
| Map: | Switzerland |
| Location: | Ticino, Switzerland |
| Range: | Lepontine Alps |
| Coordinates: | 46.2922°N 8.8236°W |
The Poncione d'Alnasca is a mountain of the Lepontine Alps, located east of Brione in the canton of Ticino. It is located on the range south of the Cima di Gagnone.
The south side consists of a pyramid-shaped and almost vertical rock face.