Langer Berg is a former Verwaltungsgemeinschaft ("collective municipality") in the district Ilm-Kreis, in Thuringia, Germany. The seat of the Verwaltungsgemeinschaft was in Gehren. It was disbanded in July 2018.
The Verwaltungsgemeinschaft Langer Berg consisted of the following municipalities:
Gehren Herschdorf Neustadt am Rennsteig Pennewitz