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

The agriculturally structured residential community of Kroppach belongs to the Verbandsgemeinde of Hachenburg, a kind of collective municipality.

The community lies between Hachenburg and Altenkirchen and is described as the gateway to the Kroppach Switzerland nature and landscape conservation area.

The local recreation area, called the Kroppacher Schweiz, or “Kroppach Switzerland”, with its many hiking paths and panoramas into the Nister Valley is a recognized nature and landscape conservation area.

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