| Altier | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Altier.svg |
| Arrondissement: | Mende |
| Canton: | Saint-Étienne-du-Valdonnez |
| Insee: | 48004 |
| Postal Code: | 48800 |
| Mayor: | Jean-Louis Balme[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Mont Lozère |
| Coordinates: | 44.475°N 3.8622°W |
| Elevation M: | 725 |
| Elevation Min M: | 616 |
| Elevation Max M: | 1678 |
| Area Km2: | 54.45 |
Altier (in French pronounced as /altje/; Occitan (post 1500);: Altièr) is a commune in the Lozère department in southern France.