Berzhahn is an Ortsgemeinde – a community belonging to a Verbandsgemeinde – in the Westerwaldkreis in Rhineland-Palatinate, Germany.

Berzhahn lies on the north slope of the broad woodland 4 km southeast of Westerburg. Since 1972 it has belonged to what was then the newly founded Verbandsgemeinde of Westerburg, a kind of collective municipality.

In 1338, Berzhahn had its first documentary mention.

The municipal council is made up of 13 council members, including the extraofficial mayor (Bürgermeister), who were elected in a majority vote in a municipal election on 7 June 2009.

Southeast of the community runs Bundesstraße 255, which leads from Montabaur to Rennerod. The nearest Autobahn interchanges are Montabaur and Limburg an der Lahn on the A 3 (Cologne–Frankfurt am Main). Berzhahn lies on the Oberwesterwaldbahn (railway) to Limburg and Au (Sieg). From there, the cities of Cologne, Koblenz, Frankfurt am Main and Wiesbaden may be reached directly. The nearest InterCityExpress stops are the railway stations at Montabaur and Limburg Süd on the Cologne-Frankfurt high-speed rail line.

• Berzhahn’s Internet presence
• Berzhahn in the collective municipality’s Web pages (in German)