| Montgauch | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Girons |
| Canton: | Portes du Couserans |
| Insee: | 09208 |
| Postal Code: | 09160 |
| Mayor: | Guy Icart[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.0014°N 1.0761°W |
| Elevation M: | 500 |
| Elevation Min M: | 376 |
| Elevation Max M: | 1151 |
| Area Km2: | 9.15 |
Montgauch is a commune in the Ariège department in southwestern France.