Kaiser-Wilhelm-Koog
Municipality
Flag Coat of arms
Location of Kaiser-Wilhelm-Koog within Dithmarschen district
Location of Kaiser-Wilhelm-Koog
Kaiser-Wilhelm-Koog Show map of Germany Kaiser-Wilhelm-Koog Show map of Schleswig-Holstein
Coordinates: 53°56′34″N 8°55′36″E / 53.94278°N 8.92667°E / 53.94278; 8.92667
Country	Germany
State	Schleswig-Holstein
District	Dithmarschen
Municipal assoc.	Marne-Nordsee
Government
• Mayor	Ernst-Otto Wilkens
Area
• Total	13.05 km2 (5.04 sq mi)
Elevation	0 m (0 ft)
Population  (2023-12-31)[1]
• Total	370
• Density	28/km2 (73/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	25709
Dialling codes	04856
Vehicle registration	HEI
Website	www.kaiser-wilhelm-koog.de

Kaiser-Wilhelm-Koog (German pronunciation: [kaɪzɐˈvɪlhɛlmˌkoːk], lit. 'Emperor William Koog') is a municipality situated along the North Sea coast in the district of Dithmarschen, in Schleswig-Holstein, Germany.

The municipality is located in and named after the Koog (polder), which was finished in 1874 and named in honour of German Emperor William I. The Koog is entirely reclaimed land and therefore a completely flat area and is 0 meters above sea level.