| Orlu | |
| Commune Status: | Commune |
| Arrondissement: | Foix |
| Canton: | Haute-Ariège |
| Insee: | 09220 |
| Postal Code: | 09110 |
| Mayor: | Alain Naudy[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.7031°N 1.8892°W |
| Elevation M: | 875 |
| Elevation Min M: | 830 |
| Elevation Max M: | 2773 |
| Area Km2: | 70.79 |
Orlu (pronounced as /fr/; Languedocien: Orlun) is a commune in the Ariège department in southwestern France.
Inhabitants of Orlu are called Orlunais.