The Dent Blanche is a mountain in the Pennine Alps , lying in the canton of Valais in Switzerland. At 4,357 m (14,295 ft)-high, it is one of the highest peaks in the Alps.

The original name was probably Dent d'Hérens , the current name of the nearby Dent d'Hérens which does not overlook the Val d'Hérens. The nearby north face of the Dent d'Hérens is glaciated while the Dent Blanche holds much less snow, it was even called Dent Noire (Black Tooth) on the Woerl Atlas of 1842. In fact on older maps, in the area where both summits lie, only the name Weisszahnhorn (from German: White Tooth Peak) was given, the French name (Dent Blanche) only appearing in 1820. Because cartographers usually made their observations far from the mountainous remote areas and also because the Dent d'Hérens is sometime hidden behind the Dent Blanche thus less visible, the latter received the name.