Kappeln (Danish: Kappel) is a town in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany. It is situated on the north bank of the Schlei, approx. 30 km (19 mi) northeast of Schleswig, and 35 km (22 mi) southeast of Flensburg.
Kappeln was first mentioned in records in 1357.
In 1870 Kappeln received town privileges, after it was a Flecken. A Flecken was a market town in Schleswig.
Kappeln has three twin towns.
Kappeln is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Kusel district in Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde Lauterecken-Wolfstein.
The municipality lies in the Western Palatinate at the mouth of the Perlebach, where it empties into the Jeckenbach (also called the Merzweiler Bach). Kappeln lies in the lower Perlebach valley at an elevation of some 230 m above sea level. Elevations around the village reach heights of roughly 350 m above sea level. The municipal area measures 767 ha, of which roughly 6 ha is settled and 57 ha is wooded.
Kappeln borders in the north on the municipality of Löllbach, in the east on the municipality of Medard, in the southeast on an exclave belonging to the municipality of Grumbach and the town of Lauterecken, in the south on the municipality of Grumbach, in the southwest on the municipality of Merzweiler, in the west on the municipality of Hoppstädten and in the northwest on the municipality of Schweinschied.