The Weßlinger See (lit.Tooltip literal translation 'Lake Weßling') is the smallest lake in the Fünfseenland (lit.Tooltip literal translation 'five lakes country') in Upper Bavaria. It is completely enclosed by the municipality of Weßling.

Lake Weßling is a remnant of a kettle hole created during the Würm glaciation. It has no natural tributary, and due to the use of fertilizers in the catchment area it was close to becoming hypoxic in the 20th century. To counter this problem an oxygen pump was installed in the middle of the lake in the 1970s, which has significantly improved the ecologic balance.

Due to its small size and lack of a natural tributary, regionally it is usually one of the warmest lakes in summer and the first lake to freeze over in winter. Especially in summer this means the lake attracts numerous visitors from the Munich Metropolitan Region. Starting in the 19th century, the scenic setting within the Bavarian Alpine Foreland has also attracted several painters and sculptors (e.g. Carl Schuch, Pierre-Auguste Renoir, Wilhelm Trübner, see Gallery) to the town of Weßling

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  View of Lake Weßling
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  Berth at Lake Weßling
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  Water fountain caused by oxygen pump
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  Lake Weßling painted by Wilhelm Trübner
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  Lake Weßling painted by Carl Schuch

• List of lakes in Bavaria

Media related to Weßlinger See at Wikimedia Commons

• Bathymetric map of Lake Weßling (in German)
• Official information about Lake Weßling from the district of Starnberg (in German)