Spiez is a town and municipality on the shore of Lake Thun in the Bernese Oberland region of the Swiss canton of Bern. It is part of the Frutigen-Niedersimmental administrative district. Besides the town of Spiez, the municipality also includes the settlements of Einigen, Hondrich, Faulensee, and Spiezwiler.

The Bernese Oberland, sometimes also known as the Bernese Highlands, is the highest and southernmost part of the canton of Bern. It is one of the canton's five administrative regions. It constitutes the Alpine region of the canton and the northern side of the Bernese Alps, including many of its highest peaks, among which the Finsteraarhorn, the highest in both range and canton.