🇩🇪 Altenkirchen is a town in Rhineland-Palatinate, Germany, capital of the district of Altenkirchen. It is located approximately 40 km east of Bonn and 50 km north of Koblenz. Altenkirchen is the seat of the Verbandsgemeinde Altenkirchen-Flammersfeld.
Altenkirchen is the northernmost district of Rhineland-Palatinate. It is occupied by the northern portions of the Westerwald mountains. The valley of the Sieg River borders the Westerwald on the north. The lands north of the Sieg are called Wildenburgisches Land, after the tiny county of Wildenburg, that once existed here.
Altenkirchen has a population of over 6,263 people. Altenkirchen also forms the centre of the wider Altenkirchen District which has a population of over 129,087 people.