Stadtlengsfeld is a town and a former municipality in the Wartburgkreis district of Thuringia, Germany.

Since 1 January 2019, it is part of the municipality Dermbach.

It is situated in the Rhön Mountains, 8 km southwest of Bad Salzungen.

Within the German Empire (1871-1918), Stadtlengsfeld was part of the Grand Duchy of Saxe-Weimar-Eisenach.

Media related to Stadtlengsfeld at Wikimedia Commons