Bismarck Tower, Memorial tower in Wuppertal, Germany

The Bismarck Tower is a stone structure about 24 meters high with a viewing platform that overlooks the Wupper Valley below. The building is constructed from sandstone and sits within a connected park system.

The tower was built to honor Otto von Bismarck, first chancellor of the German Empire, using a design by Wilhelm Kreis called "Götterdämmerung" that won a 1899 competition of the German Student Association. Elberfeld city architect Lothar Schönfelder supervised construction; the foundation stone was laid on 1 April 1907, and the tower opened on 19 October 1907. Thieves broke open the foundation stone shortly after it was laid and stole a time capsule with documents and coins worth 18 marks.

The tower is one of more than 40 Bismarck towers built to Wilhelm Kreis's 1899 competition design "Götterdämmerung", chosen by the German Studentenschaft. It stands on the Hardtanlage ridge on the old border between Elberfeld and Barmen, which merged into Wuppertal in 1929. The tower has been closed since 2015, so visitors see it from the park paths rather than from its platform.

The tower stands on the Hardtanlage ridge on the Elberfeld–Barmen boundary and is reached on foot through the park. It has been closed since 2015, so the 23.5-metre viewing platform and its stair extension cannot be climbed. The structure is a protected monument, visible from the surrounding paths.

The tower stands on the Hardtanlage, a park-like ridge on the boundary between Elberfeld and Barmen, the two towns that merged into Wuppertal in 1929. It is one of more than 40 towers built to Wilhelm Kreis's 1899 competition design "Götterdämmerung".