Biebrich Water tower, Water tower in Biebrich district, Wiesbaden, Germany.

The Biebricher Wasserturm is a brick water tower on the Adolfshöhe in Wiesbaden-Biebrich. Its cylindrical shaft carries a copper-sheet-covered roof, and the former viewing platform lay 42 m above ground. The steel tank inside holds about 200 m³ and has a circular plan 11 m in diameter.

The brick tower was commissioned on 6 December 1897 to raise pressure in the water network of Biebrich, then an independent town. Until 1914 it also served as an observation tower, with a platform 42 m up reached by 235 steel steps with a tower keeper; over 3,000 visitors came in the year after opening. After Wiesbaden and Biebrich merged their water supplies, it was shut down in 1923, though the underground tanks stayed in use for decades.

The tower is a listed monument on the Adolfshöhe. Its viewing platform, 42 m up above a copper-sheet roof, was reached by 235 steel steps with a tower keeper, and over 3,000 visitors climbed it in 1898. Since 2003 it has been privately owned, and its future use is still debated.

The tower has been out of service since 1923 and is privately owned since 2003, so the 42-metre viewing platform above the copper-clad roof, reached by 235 steel steps, is not open to visitors today. The site stands on the Adolfshöhe in Wiesbaden-Biebrich; parts of the underground reservoir and the pump house were demolished after 2003.

The tower's copper-sheet roof caps a 200 m³ tank with an 11 m circular footprint. Around the tower lay an underground reservoir holding 1,000 m³ of water; parts of it and a pump-keeper's house were demolished after the tower passed into private ownership in 2003, and its future use has been debated since.