| Altviller | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Altviller (Moselle).svg |
| Arrondissement: | Forbach-Boulay-Moselle |
| Canton: | Saint-Avold |
| Insee: | 57015 |
| Postal Code: | 57730 |
| Mayor: | Jean-Jacques Ballèvre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Saint-Avold Synergie |
| Coordinates: | 49.0733°N 6.7333°W |
| Elevation M: | 305 |
| Elevation Min M: | 251 |
| Elevation Max M: | 296 |
| Area Km2: | 4.85 |
Altviller (pronounced as /fr/; de|Altweiler) is a commune in the Moselle department in Grand Est in northeastern France.