Achenkirch is a municipality in the Schwaz district in the Austrian state of Tyrol. It lies at the northern end of Lake Achensee, the largest lake in the Tyrol region.
The settlement's position on the lake's northern shore places it within the Achensee area, a part of the Tyrol known for its alpine setting. As a municipality, Achenkirch forms part of the Schwaz district, one of the administrative divisions of the state of Tyrol.
Its location at the head of Lake Achensee is the community's defining geographic feature, linking the village to the lake that gives the surrounding area its name.