The municipality is located on the south shore of the river Lahn, at Kilometre 128, rising up to the hills of the Taunus mountains.

It is then clockwise surrounded by the neighbouring municipalities of Frücht, Miellen and Fachbach on the opposite shore of the Lahn river.

Nievern is connected to the State Road B260 running up the Lahn valley from Lahnstein to Wiesbaden via a bridge crossing the river.

During the Second World War, the nearby ironwork Nieverner Hütte, located on an island in the river, served as a production facility for munitions.

Bombing raids on the factory and the nearby strategically important cities of Koblenz, Lahnstein and Nassau caused minor destruction and casualties due to accidental collateral damages in the village.