| Hartenstein | |
| Image Coa: | Wappen Hartenstein.svg |
| Coordinates: | 49.5958°N 11.5239°W |
| Image Plan: | Hartenstein in LAU.svg |
| State: | Bayern |
| Region: | Mittelfranken |
| District: | Nürnberger Land |
| Verwaltungsgemeinschaft: | Velden (Pegnitz) |
| Elevation: | 500 |
| Area: | 24.76 |
| Postal Code: | 91235 |
| Area Code: | 09152 |
| Licence: | LAU, ESB, HEB, N, PEG |
| Gemeindeschlüssel: | 09 5 74 129 |
| Divisions: | 15 Ortsteile |
| Website: | www.hartenstein-mfr.de |
| Mayor: | Hannes Loos[1] |
| Leader Term: | 2020 - 26 |
| Party: | CSU |
Hartenstein (pronounced as /de/) is a municipality in the district of Nürnberger Land in Bavaria in Germany.