| Château-Verdun | |
| Commune Status: | Commune |
| Arrondissement: | Foix |
| Canton: | Haute-Ariège |
| Insee: | 09096 |
| Postal Code: | 09310 |
| Mayor: | Thierry Boës[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.7831°N 1.6806°W |
| Elevation M: | 550 |
| Elevation Min M: | 529 |
| Elevation Max M: | 766 |
| Area Km2: | 0.7 |
Château-Verdun (in French ʃɑto vɛʁdœ̃/; Languedocien: Castèlverdun) is a commune in the Ariège department in southwestern France.