Fennpfuhlpark, Public park in Fennpfuhl, Lichtenberg, Germany.

Fennpfuhlpark is a 9.5-hectare park in Berlin-Lichtenberg, bounded by Weißenseer Weg, Paul-Junius-Straße, Landsberger Allee and Anton-Saefkow-Platz. Its centre is the Fenn-Pfuhl, created between 1978 and 1981 by merging the former Fennpfuhl and Langpfuhl ponds, crossed by a small footbridge. The pond is about 1.50 m deep, has no inflow or outflow, and is kept topped up by a one-kilometre ring main with 30 taps fed by groundwater from a 30-metre borehole.

The park's central pond was created between 1978 and 1981 by merging the former Fennpfuhl and Langpfuhl into one water body, sometimes called a "new lake landscape", spanned by a small footbridge. Earlier, in the 18th and 19th centuries, the ponds served ice harvesting: Louis Dittmar's Eiswerke Lichtenberg cut winter ice blocks for breweries, and the northern Langpfuhl was used as an ice works into the early 20th century. From 1891 to about 1905 three innkeepers settled by the ponds, and in 1901 the excursion venue Lichtenberger Seeterrasse opened with room for some 25,000 visitors.

The pond's name comes from the fen landscape; from 1891 three inns opened around the Pfuhle, among them the Wirtshaus zum hungrigen Wolf, later Fürst Wolfgang, and in 1901 the Weltetablissement Lichtenberger Seeterrasse, which could hold about 25,000 visitors. Rowboats were rented out, and a wooden viewing tower and orchestra platforms stood by the water. In GDR times the pond was part of the Lichtenberger Maifest, when children could try racing canoes under trainers' guidance.

Multiple entrances along Weißenseer Weg, Paul-Junius-Straße, and Landsberger Allee provide access with good connections to public transportation. These entry points allow you to choose your route based on where you start and what you want to explore.

An artificial nesting island installed in the central pond during 2024 provides protected habitat for water birds. Visitors walking along the paths can watch birds using and settling on this new feature.