Oeschinen Lake is a lake in the Bernese Oberland, Switzerland, 4 kilometres east of Kandersteg in the Oeschinen valley. At an elevation of 1,578 metres, it has a surface area of 1.1147 square kilometres. Its maximum depth is 56 metres.
The lake is fed through a series of mountain creeks and drains underground. The water then resurfaces as the Oeschibach. Part of it is captured for electricity production and as water supply for Kandersteg.
In observations from 1931 to 1965, the elevation of the lake surface varied between 1,566.09 metres and 1,581.9 metres. The average seasonal variation was 12.2 metres.
Address 3718, Switzerland
Coordinates 46°29'54.16" N 7°43'35.318" E