Bodenseekreis — Lake Constance district in Baden-Württemberg

Bodenseekreis is a rural district in the southeast of Baden-Württemberg, Germany. The name reflects the district's close connection to the large inland lake known internationally as Lake Constance (German: Bodensee). The administrative centre and largest town is Friedrichshafen, situated on the lake's northern shore.

Geographically the district occupies part of the northern lakeside and adjacent lowlands and rolling hills. On land it borders the districts of Konstanz, Sigmaringen and Ravensburg, while across the state boundary lies the Bavarian region including the Lindau district in Bavaria. To the south the district faces Switzerland across the lake and forms part of a tri-national area that also involves Austria.

The modern administrative entity was created during regional reform in the early 1970s when smaller units were reorganised into the present district. The district council and administration handle local planning, schools, roads and social services for a mixture of towns, villages and rural municipalities along the shore and inland.

Bodenseekreis combines several economic strands. Tourism is important: lakeside promenades, historic town centres, castles and museums attract visitors year-round — Friedrichshafen's Zeppelin Museum is a well-known example. Agriculture on the hinterland includes orchards, vineyards and specialty crops, while a network of small and medium-sized industrial firms supply the aviation and automotive sectors and other manufacturing niches.

Prominent towns in the district include Friedrichshafen, Überlingen, Meersburg, Tettnang and Markdorf, each offering harbour areas, markets and cultural events. Transport links comprise regional rail, road connections and ferry services across the lake; recreational infrastructure such as the Lake Constance Cycle Path and waymarked hiking routes supports outdoor tourism and local leisure.

As part of the Lake Constance region the district participates in cross-border cooperation on transport, environmental protection and tourism promotion. Its mix of scenic shoreline, productive agricultural land and clustered industry illustrates how regional economies around transnational lakes can be diversified and interconnected.