| Translation: | Broad Horn |
| Photo Size: | 285 |
| Topo Map: | Swisstopo topographic maps |
| Elevation M: | 3780 |
| Prominence M: | 464 |
| Prominence Ref: | [1] |
| Listing: | Alpine mountains above 3000 m |
| Map: | Switzerland |
| Subdivision2 Type: | Cantons |
| Country: | Switzerland |
| Parent: | Bernese Alps |
| Coordinates: | 46.4784°N 7.8766°W |
| First Ascent: | Edmund von Fellenberg (31 July 1865) |
The Breithorn, (3,780 m) is a mountain of the Bernese Alps, located on the border between the Swiss cantons of Bern and Valais. It is part of the border between Lauterbrunnental and the Lötschental. It lies approximately halfway between the Tschingelhorn and the Grosshorn.The Rock-Tower of the Subpeak Kleines Breithorn (3,554 m) is located south of the Main Peak.
The Breithorn is one of two mountains named Breithorn overlooking the Lötschental, the other being the Breithorn (Blatten).