Hartenstein may refer to:
Places
edit- Hartenstein, Saxony, a town in Saxony, Germany
- Hartenstein, Bavaria, a municipality in the district of Nürnberger Land in Bavaria, Germany
- several castles in Germany
- Hartenstein, Austria, a castle in Austria
- Hartenštejn , a castle in the Czech Republic
- Hartenstein, Slovenia, a castle in Slovenia's Kozje region