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

In the course of administrative reform – namely the formation of the Verbandsgemeinden in Rhineland-Palatinate – the two former communities’ councils came up with the new placename Dreikirchen.

Each of these is documented by an heraldic tincture, namely blue for the community's main membership in Nassau, and red for the Electorate of Trier.

The dexter (ie on the armsbearer's right and therefore the viewer's left) field shows an oak sprig with two acorns representing the centuries-old oak forest in Pütschbach and nature in general, while the sinister (ie on the armsbearer's left and therefore the viewer's right) field shows some basalt columns referring to the basalt deposits in Oberhausen and the basalt mining there that goes back generations.

The nearest InterCityExpress stop is Montabaur station on the Cologne-Frankfurt high-speed rail line.