| Marchastel | |
| Commune Status: | Commune |
| Arrondissement: | Mende |
| Canton: | Peyre en Aubrac |
| Insee: | 48091 |
| Postal Code: | 48260 |
| Mayor: | Éric Malherbe[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Hautes Terres de l'Aubrac |
| Coordinates: | 44.6519°N 3.1075°W |
| Elevation M: | 1200 |
| Elevation Min M: | 1139 |
| Elevation Max M: | 1304 |
| Area Km2: | 34.87 |
Marchastel (in French pronounced as /maʁʃastɛl/; Occitan (post 1500);: Marchastèl) is a commune in the Lozère department in southern France.[2]