Zervreilahorn, Mountain summit in Graubünden, Switzerland

Zervreilahorn is a 2,898 m summit in the Adula Alps above the Zervreilasee, south of Vals in Graubünden. From the lake it looks like a pyramid, earning the nickname "Bündner Matterhorn", but it is actually a jagged northeast–southwest ridge with two main peaks, the lower northeast summit reaching 2,862 m. The southwest summit is climbed via the south ridge (T5, II) or the southeast face ramp, while the northeast summit has a V-grade (UIAA) route on its northeast ridge.

The main summit was first climbed on 13 August 1885 by Emil Huber and A. Frick, who took the north face route from Lampertsch Alp. The lower north-east summit (2,862 m) was first reached on 24 July 1895 by Jörger with B. Schnyder via the south-east face. Technical lines followed later, including the Fahnenroute by Hannes Tönz and Karl Furger on 15 August 1977.

The name Zervreila derives from the Latin alpis superaria, "the uppermost alp", recorded as alpis de Seurera in 1301 and Safraylen in 1504. The peak appears on the label of Valser mineral water, bottled from the Vals valley springs. The Furggelti path between the Zervreilahorn and the Furggeltihorn leads hikers to the Läntahütte.

The best time to climb is from spring through fall when snow and ice have mostly melted away. Beginners should go with an experienced guide since the routes do not have fixed protection gear.

The Zervreilahorn appears on the label of Valser mineral water, bottled from the spring in the Vals valley. From the Zervreilasee it looks like a sharp pyramid, which earned it the nickname "Bündner Matterhorn"; from the other side it is a jagged ridge with two main summits, the lower northeast peak reaching 2,862 m.