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

The community lies in the Westerwald between Montabaur and Koblenz in the Nassau Nature Park. The community belongs to the Verbandsgemeinde of Montabaur, a kind of collective municipality.

In 1110, Kadenbach had its first documentary mention.

The council is made up of 17 council members, including the extraofficial mayor (Bürgermeister), who were elected in a municipal election on 13 June 2004.

	CDU	SPD	FWG Kadenbach	Total
2004	3	4	9	16 seats

The community's arms recalls, with the cross pattée resembling the Teutonic Knights’ cross and the black eagle's head as part of the whole, the community's almost 600-year allegiance to the Koblenz House of the Teutonic Knights. The red cross and the tincture silver stand for the overlordship of the Electorate of Trier.

In 2006, a new credit union was built.

The nearest Autobahn interchange is Montabaur on the A 3 (Cologne–Frankfurt), some 12 km away.

• Kadenbach (in German)