Appen is a municipality in the district of Pinneberg, in Schleswig-Holstein, Germany. It is situated approximately 3 km west of Pinneberg, and 20 km northwest of Hamburg.

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Quick Facts Country, State ...

Appen
Municipality
Flag Coat of arms
Location of Appen within Pinneberg district
Appen Show map of Germany Appen Show map of Schleswig-Holstein
Coordinates: 53°39′42″N 9°44′40″E
Country	Germany
State	Schleswig-Holstein
District	Pinneberg
Municipal assoc.	Geest und Marsch Südholstein
Subdivisions	3
Government
• Mayor	Hans-Joachim Banaschak
Area
• Total	20.26 km2 (7.82 sq mi)
Elevation	6 m (20 ft)
Population  (2022-12-31)[1]
• Total	4,834
• Density	240/km2 (620/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	25480–25482
Dialling codes	04101, 04122
Vehicle registration	PI

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It is twinned with the village of Polegate, near Eastbourne in East Sussex, England.

The municipality is known for its annual Appen musiziert benefit concerts.