The Niesenbahn is a funicular railway above Lake Thun in the canton of Bern, Switzerland.

It links a lower terminus, in the village of Mülenen at 693 m and adjacent to Mülenen station on the Lötschberg railway line, with an upper terminus at 2336 m near the summit of Niesen, a viewpoint above the lake and Bernese Oberland.

The funicular is divided into two portions with a total length of 3.5 kilometers, an elevation difference of 1643 meters, and a maximum slope of 68%.

[3] The stairs are usually employee-only, but there is a public run called "Niesenlauf" once a year.

[8] The line comprises two sections, with an interchange station at Schwandegg, and has the following parameters:[5][6][7]