| Unterrothorn | |
| Photo Size: | 285 |
| Elevation M: | 3104 |
| Prominence M: | 123 |
| Prominence Ref: | [1] |
| Parent Peak: | Monte Rosa |
| Map: | Switzerland |
| Location: | Valais, Switzerland |
| Range: | Pennine Alps |
| Coordinates: | 46.0219°N 7.7975°W |
| Easiest Route: | Cable car |
The Unterrothorn (or simply Rothorn) is a mountain of the Swiss Pennine Alps, overlooking Zermatt in the canton of Valais. It is located west of the Oberrothorn, on the range north of the Findel Glacier.
The summit can be reached by cable car via Sunnegga and Blauherd. The Rothorn paradise is one of the main ski areas located around Zermatt.