| L'Herm | |
| Commune Status: | Commune |
| Arrondissement: | Foix |
| Canton: | Val d'Ariège |
| Insee: | 09138 |
| Postal Code: | 09000 |
| Mayor: | Jean-Claude Serres[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays Foix-Varilhes |
| Coordinates: | 42.9733°N 1.6869°W |
| Elevation M: | 508 |
| Elevation Min M: | 411 |
| Elevation Max M: | 960 |
| Area Km2: | 14.67 |
L'Herm (in French pronounced as /lɛʁm/; Occitan (post 1500);: L'Èrm) is a commune in the Ariège department in southwestern France.