Klein Grünhorn, Mountain summit in Valais, Switzerland

Klein Grünhorn is a summit of the Bernese Alps in the canton of Valais, Switzerland, reaching about 3,913 metres with a prominence of 63 metres. It stands just north of the higher Gross Grünhorn, of which it forms a subsidiary top, in the ice-covered high alpine terrain above the Fiescher glacier basin.

The Klein Grünhorn is a secondary summit of the Gross Grünhorn, the higher mountain it stands just north of in the Bernese Alps of Valais. Its topographic prominence is only 63 metres, and it reaches about 3,913 metres. The sources record no separate climbing history for this subordinate peak; its place in the record comes from its relation to the Gross Grünhorn massif.

The name Grünhorn means "green horn" or "green peak" in German, a reference shared with the larger Gross Grünhorn to the south. The Klein Grünhorn stands in the Bernese Alps of Valais, and its 63-metre prominence over the parent summit shapes how it is listed among Swiss mountains. Swiss mountain lists record it among the country's summits, and the Arabic-language Wikipedia entry links it to the national list of Swiss mountains.

Climbers need advanced mountaineering skills and full equipment to reach the summit safely. Access typically starts from mountain huts in the area, which serve as basepoints for expeditions in this region.

The Klein Grünhorn rises to about 3,913 metres but its prominence is only 63 metres, since it is a sub-peak of the Gross Grünhorn. It stands just north of that higher summit in the Bernese Alps of Valais, so climbers on the Gross Grünhorn route pass close to it.