Weddingstedt was an Amt Kirchspielslandgemeinde ("collective municipality") in the district of Dithmarschen, in Schleswig-Holstein, Germany. Its seat was in Weddingstedt. In January 2008, it was merged with the Amt Heide-Land and the municipality Norderwöhrden to form the Amt Heider Umland.
The Amt Kirchspielslandgemeinde Weddingstedt consisted of the following municipalities (with population in 2005):