Bödeli is the tongue of land between Lake Thun and Lake Brienz in the Bernese Oberland of Switzerland. Lake Thun and Lake Brienz were not yet separate after the last ice age. The rivers Lütschine from the south and the Lombach from the north brought enough debris to cause a partitioning over the millennia. Now Lake Brienz has a water level about higher than Lake Thun and the river Aare flows from one lake to the other through the Bödeli.
On the Bödeli are situated the towns of Unterseen, Interlaken and Matten, which form a closed settlement area, and at the southern border are the municipalities of Wilderswil and Bönigen. From the south a hill course, the Rugen, rises up.