Friedrichshafen is a city on the northern shoreline of Lake Constance in Southern Germany, near the borders of both Switzerland and Austria. It is the district capital (Kreisstadt) of the Bodensee district in the federal state of Baden-Württemberg. Friedrichshafen has a population of about 58,000.

Lake Constance refers to three bodies of water on the Rhine at the northern foot of the Alps: Upper Lake Constance (Obersee), Lower Lake Constance (Untersee), and a connecting stretch of the Rhine, called the Lake Rhine (Seerhein). These waterbodies lie within the Lake Constance Basin in the Alpine Foreland through which the Rhine flows.