Besso is a mountain in the Pennine Alps in the Swiss canton of Valais. It has two significant summits: the main summit and the north-top. The name Besso means "twins" in the dialect of the Val d'Hérens and refers to the twin summits of the mountain.
Elevation: 3,669 m (12,037 ft)
Location: Valais, Switzerland
Prominence: 151 m (495 ft)
Parent peak: Weisshorn
Parent range: Pennine Alps
First ascent: c. 1862 by J. B. Epinay and J. Vianin
Easiest route: South flank and south-east ridge (F)