Interlaken is a statistic town and municipality in the Interlaken-Oberhasli administrative district in the Swiss canton of Bern. It is an important and well-known tourist destination in the Bernese Highlands region of the Swiss Alps, and the main transport gateway to the mountains and lakes of that region.
The town is located on the flat alluvial land called Bödeli between the two Lakes of Brienz to the east and Thun to the west and alongside the river Aare, which flows from one to the other. Transport routes to the east and west alongside the lakes are complemented by a route southwards into the near mountain resorts and high mountains, e.g. the famous high Alpine peaks of Eiger, Mönch, and Jungfrau, following upwards the Lütschine.
Interlaken is the central town of a Small Agglomeration with the same name of 23,300 inhabitants.
The official language of Interlaken is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect.