Ernstthal
Ernstthal denotes:
- Ernstthal (Hohenstein-Ernstthal) , a district of Hohenstein-Ernstthal , Zwickau district, Saxony
- Ernstthal (Lauscha) , district of Lauscha, Thuringia
- Ernstthal (Schleusegrund) , part of Schleusegrund, Hildburghausen district, Thuringia