| Montrosier | |
| Commune Status: | Commune |
| Arrondissement: | Albi |
| Canton: | Carmaux-2 Vallée du Cérou |
| Insee: | 81184 |
| Postal Code: | 81170 |
| Mayor: | Thierry Gautier[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.1389°N 1.8375°W |
| Elevation M: | 137 |
| Elevation Min M: | 110 |
| Elevation Max M: | 394 |
| Area Km2: | 3.39 |
Montrosier is a commune in the Tarn department in southern France.