Hartenstein may refer to:
Hartenstein, Saxony, a town in Saxony, Germany Hartenstein, Bavaria, a municipality in Nürnberger Land, Bavaria, Germany Burg Hartenstein, a castle in Lower Austria, Austria Airborne Museum 'Hartenstein', in the Netherlands Hartenstein (surname)
See also Hartenštejn, a castle in Bochov, the Czech Republic Hardenstein Hertenstein (disambiguation)