Lunden was an Amt Kirchspielslandgemeinde ("collective municipality") in the district of Dithmarschen, in Schleswig-Holstein, Germany. Its seat was in Lunden. In January 2008, it was merged with the Ämter Hennstedt and Tellingstedt to form the Amt Eider.
The Amt Kirchspielslandgemeinde Lunden consisted of the following municipalities (with population in 2005):