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

The community lies in the Westerwald between Limburg an der Lahn and Montabaur on the edge of the Nassau Nature Park.

Nentershausen, which came from the hereditary holdings of the Counts of Diez, was finally passed to the Electorate of Trier in 1564.

InterCityExpress connections are to be had through the railway station at Limburg and Montabaur on the Cologne-Frankfurt high-speed rail line, each just under 12 km away on the A 3.

There are local public transport connections to Montabaur, Diez, Limburg and Koblenz, and well marked hiking paths around the community.