| Type: | Ortsteil |
| Municipality: | Dermbach |
| Image Coa: | Wappen_Stadtlengsfeld.png |
| Coordinates: | 50.7833°N 18°W |
| State: | Thuringia |
| District: | Wartburgkreis |
| Elevation: | 272 |
| Area: | 27.61 |
| Population: | 2356 |
| Stand: | 2017-12-31 |
| Postal Code: | 36457 |
| Area Code: | 036965 |
| Website: | www.stadt-stadtlengsfeld.eu |
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.
It was the site of the Menzengraben mining accident in 1953.
