Delve is a municipality belonging to the Amt Kirchspielslandgemeinde ("collective municipality") Eider in the district Dithmarschen in Schleswig-Holstein, in northern Germany.
The municipality covers an area of 15.85 km². Of the total population of 734, 364 are male, and 374 are female (Dec 31, 2004). The population density of the community is 46 inhabitants per km².