Zehlendorfer Eiche, Natural monument oak tree at central intersection in Zehlendorf, Germany.

The Zehlendorfer Eiche is a pedunculate oak with a wide-spreading crown at the centre of Berlin's Zehlendorf district, where Potsdamer Strasse, Berliner Strasse, Clayallee and Teltower Damm meet. It is protected as natural monument No. 6-31/B; a bronze plaque sits on the south side of the trunk.

The tree was planted on September 2, 1871, commemorating the first anniversary of the Battle of Sedan during the Franco-Prussian War. This planting date ties the oak to a significant moment in Prussian military history.

The oak is called a Friedenseiche, a peace oak, planted on the anniversary of the Battle of Sedan. A bronze plaque on the south side of the trunk marks this. The tree stands where Potsdamer Strasse, Berliner Strasse, Clayallee and Teltower Damm meet, and the Zehlendorf local museum and village church are close by.

The tree is located at a well-marked intersection and serves as an easy navigation point near public transport stops. Visitors can access the site freely at any time without fees or restrictions.

A large branch broke off the Zehlendorfer Eiche in summer 2020. To save the oak, the area around it was to be unsealed to create a tree disk, and the bench circling the trunk was removed. The tree is protected as natural monument No. 6-31/B (X-42B).