| Oberaarhorn | |
| Elevation M: | 3631 |
| Prominence M: | 260 |
| Prominence Ref: | [1] |
| Parent Peak: | Finsteraarhorn |
| Map: | Switzerland |
| Location: | Valais/Bern, Switzerland |
| Range: | Bernese Alps |
| Coordinates: | 46.5314°N 8.1744°W |
The Oberaarhorn is a mountain of the Bernese Alps, located on the border between the Swiss cantons of Valais and Bern. Its summit (3,631 metres) is the tripoint between the basins of the Fiesch (Valais), Unteraar and Oberaar Glacier (Bern).