| Perles-et-Castelet | |
| Commune Status: | Commune |
| Arrondissement: | Foix |
| Canton: | Haute-Ariège |
| Insee: | 09228 |
| Postal Code: | 09110 |
| Mayor: | Gérard Durand[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.7447°N 1.7875°W |
| Elevation M: | 740 |
| Elevation Min M: | 618 |
| Elevation Max M: | 2243 |
| Area Km2: | 17.77 |
Perles-et-Castelet (in French pronounced as /pɛʁl e kastəlɛ/; Occitan (post 1500);: Pèrlas e Castelhet) is a commune in the Ariège department in southwestern France.
Inhabitants are called Perlois.