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

Since 1972 it has belonged to what was then the newly founded Verbandsgemeinde of Westerburg, a kind of collective municipality.

Stahlhofen am Wiesensee's neighbours are Pottum, Hergenroth, Winnen and Halbs.

The Wiesensee (lake) has an area of roughly 80 ha and offers not only hikes around it but also bathing, sailing, surfing and angling.

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