| Plaigne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Plaigne (Aude).svg |
| Arrondissement: | Carcassonne |
| Canton: | La Piège au Razès |
| Insee: | 11290 |
| Postal Code: | 11420 |
| Mayor: | Didier Alric[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.1744°N 1.8125°W |
| Elevation M: | 308 |
| Elevation Min M: | 249 |
| Elevation Max M: | 392 |
| Area Km2: | 13.19 |
Plaigne (pronounced as /fr/; oc|Planha) is a commune in the Aude department in southern France.