| Mont-Saint-Martin | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Mont-Saint-Martin (Meurthe-et-Moselle).svg |
| Arrondissement: | Val-de-Briey |
| Canton: | Mont-Saint-Martin |
| Insee: | 54382 |
| Postal Code: | 54350 |
| Mayor: | Serge De Carli[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Grand Longwy Agglomération |
| Coordinates: | 49.5411°N 5.78°W |
| Elevation M: | 335 |
| Elevation Min M: | 260 |
| Elevation Max M: | 398 |
| Area Km2: | 8.84 |
Mont-Saint-Martin (pronounced as /fr/; de|Martinsberg; lb|Mäertesbierg) is a commune in the Meurthe-et-Moselle department in north-eastern France. It is part of the urban area of Longwy.[2]