Steinefrenz 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 Limburg an der Lahn, and 25 km from Koblenz. It belongs to the Verbandsgemeinde of Wallmerod, a kind of collective municipality. Its seat is in the like-named town.
In 959, Steinefrenz had its first documentary mention as Brencede.
The council is made up of 12 council members who were elected in a majority vote in a municipal election on 13 June 2004.
East of the community runs Bundesstraße 8, linking Limburg an der Lahn and Hennef. The nearest Autobahn interchange is Diez on the A 3 (Cologne–Frankfurt), some 7 km away. The nearest InterCityExpress stops are the railway stations at Montabaur and Limburg an der Lahn on the Cologne-Frankfurt high-speed rail line.