Fernmeldeturm Schleswig, Television tower in Schleswig, Germany

Fernmeldeturm Schleswig is a concrete transmission tower in the city of Schleswig that broadcasts television and radio signals across northern Germany. The structure rises prominently as a single vertical tower that dominates views from various angles in the surrounding area.

Deutsche Bundespost decided to build the tower in the late 1980s because of rising telephone traffic, text and data services and new mobile radio systems. Work began in August 1989 with the 19-metre foundation, which used 50 tonnes of steel and 800 m³ of concrete; the shaft followed in September 1989 and the top was completed in early 1991. The tower opened on 19 May under the name "Schliekieker", chosen from 258 suggestions in a competition, and cost 13 million D-Mark.

Locals call the tower "Schliekieker", a Low German nickname chosen in 1991 from 258 entries in a competition run by Telekom, the Schleswig-Holsteinischer Zeitungsverlag and Lattenkamp businesses. The mayor opened it with the words "Ik döp di op de Nom Schliekieker". A tower week followed, and the 1994 tower festival drew 25,000 visitors.

The tower is visible from various points around the city and surrounding areas. Public access to the tower itself is not permitted, as it is an active transmission facility with strict safety requirements for operational purposes.

The tower's nickname, Schliekieker, was chosen in a competition from 258 entries and the mayor opened it on 19 May with the Low German words "Ik döp di op de Nom Schliekieker". A tower week followed, ending with an open day when visitors could see the operations room; proceeds went to the BUND group Schleswig-Flensburg for the Himmelsauge biotope.