Wasserturm Wilhelmshaven, Water tower in Kurpark, Wilhelmshaven, Germany.

Wasserturm Wilhelmshaven is a 42-meter brick structure with a round base that changes into a twelve-sided shape toward the top, topped by a large steel container. The vessel holds water for the city, while the building stands out through its solid brick construction.

Wasserturm Wilhelmshaven was built in 1910–11 as the city's third water tower and originally held drinking water in two suspended alloyed-steel chambers of 800 to 1,200 cubic metres each. After a century of service, corrosion caused leaks in the inner connections, so in 2007 the old container was fully removed and the tower, foundation included, rebuilt around a new stainless-steel container 15.90 metres in diameter with a water level of 8.75 metres and a capacity of 1,750 cubic metres.

The tower sits in Kurpark and shapes the city's character as a symbol of early 20th-century urban growth. Visitors see how Wilhelmshaven expanded and built its public services.

The tower stands in Kurpark on Bismarckstraße, so it can be reached on foot through the park. The structure is viewed from outside; the surrounding grounds allow visitors to walk around it and see it from different sides.

The 2007 rebuild replaced the original alloyed-steel chambers with a stainless-steel vessel 15.90 metres across, holding 1,750 cubic metres — more than either of the two old chambers could store. The old container was fully dismantled and the foundation reconstructed during months of work.