The Sigriswilergrat, sometimes referred to as Sigriswilgrat, is a ridge of the Alps, Emmental in the Swiss canton of Bern. Its highest peak is the Sigriswiler Rothorn (2,051 metres above sea level).
The ridge is located about 12 km east) of Thun. The Sigriswilergrat chain stretches from Lake Thun at Merligen over some 7 kilometres to the northeast to the edge of the Zulgtals. Major peaks are found from the southwest to the northeast including Fluh (1,658 m above sea level), Merra (1,954 m above sea level), Sigriswiler Rothorn (2,051 m above sea level, which is also the highest mountain in the chain), Mittaghorn (2,014 m above sea level), Schaflägerzähne (1,952 m above sea level) and Burst (1,969 m above sea level).
Sigriswilergrat was formed by the Helvetic System over the course of approximately 160 million years. From a geological point of view Sigriswilergrat was formed of Helvetic sediments, these were deposited between approximately 225 to 65 million years ago.