| Plagne | |
| Commune Status: | Commune |
| Arrondissement: | Muret |
| Canton: | Cazères |
| Insee: | 31422 |
| Postal Code: | 31220 |
| Mayor: | Henri Rouaix[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.1581°N 1.0606°W |
| Elevation M: | 360 |
| Elevation Min M: | 316 |
| Elevation Max M: | 590 |
| Area Km2: | 4.15 |
Plagne (in French pronounced as /plaɲ/; Occitan (post 1500);: Planha) is a commune in the Haute-Garonne department in southwestern France.