Fernmeldeturm Wuppertal-Küllenhahn, Telecommunications tower in Wuppertal, Germany

The Fernmeldeturm Wuppertal-Küllenhahn is a 98.5-metre reinforced-concrete Typenturm of eleven storeys, built in 1956 on the southern heights of Wuppertal at 330 metres above sea level. Four antenna platforms ring the shaft, the lowest at 41 metres and the highest at 67 metres. It replaced a 35-metre temporary lattice mast on the same spot.

The structure was built in 1956 by Deutsche Bundespost and replaced a temporary 35-meter lattice mast that had served the area. This new installation significantly expanded telephone network capacity for the region.

The tower stands near the former Rigi-Kulm restaurant, named after a Swiss mountain, which drew local residents from 1910 to 2013. The establishment was a popular gathering spot for people in the area for many decades.

The tower is not open to visitors; it stands on the southern heights of Wuppertal in the Küllenhahn district at 330 metres above sea level, and its signals reach the whole city despite the valley topography. The site is reached via Jung-Stilling-Weg.

The tower's nickname, Rigi-Kulm, comes from an excursion restaurant that stood beside it from 1910. Its founder Wilhelm Gietenbruch sent his daughter Helene to Lake Lucerne in 1913 to learn hotel management, and she brought back the name of the Swiss viewpoint Rigi Kulm. The restaurant closed on 29 September 2013 and was demolished in 2015.