The Solvay Hut or Solvay Bivouac (German: Solvayhütte) is a mountain hut located on the north-eastern ridge (Hörnli Ridge) of the Matterhorn, near Zermatt in the canton of Valais. At it is the highest mountain hut owned by the Swiss Alpine Club, but can be used only in case of emergency. The Hörnli Hut, lying 700 meters below on the same ridge, is the starting point of the normal route to the summit.