Altenkirchen is a district in Rhineland-Palatinate, Germany. It is bounded by (from the north and clockwise) the North Rhine-Westphalian districts Rhein-Sieg, Oberbergischer Kreis, Olpe and Siegen-Wittgenstein, and the districts of Westerwaldkreis and Neuwied.

Altenkirchen is a town and a municipality in Rhineland-Palatinate, Germany, capital of the district of Altenkirchen. It is located approx. 40 km east of Bonn and 40 km north of Koblenz.