| Montenach | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Montenach 57.svg |
| Arrondissement: | Thionville |
| Canton: | Bouzonville |
| Insee: | 57479 |
| Postal Code: | 57480 |
| Mayor: | Jean-Paul Tinnes[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Bouzonvillois-Trois Frontières |
| Coordinates: | 49.4203°N 6.3814°W |
| Elevation M: | 200 |
| Elevation Min M: | 175 |
| Elevation Max M: | 340 |
| Area Km2: | 9.19 |
Montenach (pronounced as /fr/) is a commune in the Moselle department in Grand Est in north-eastern France.