| Hartz Mountains | |
| Country: | Canada |
| Region: | Nunavut |
| Parent: | Arctic Cordillera |
| Coordinates: | 73.5014°N -82.9989°W |
The Hartz Mountains are a mountain range on Baffin Island, Nunavut, Canada. It is located in Sirmilik National Park which is Baffin Island's northernmost national park. It makes up part of the Arctic Cordillera mountain system.