| Le Châtelet-sur-Retourne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Le Châtelet-sur-Retourne.svg |
| Arrondissement: | Rethel |
| Canton: | Château-Porcien |
| Insee: | 08111 |
| Postal Code: | 08300 |
| Mayor: | Jean-Michel Mavel[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.4175°N 4.2792°W |
| Elevation M: | 85 |
| Elevation Min M: | 77 |
| Elevation Max M: | 143 |
| Area Km2: | 9.94 |
Le Châtelet-sur-Retourne (in French pronounced as /lə ʃatlɛ syʁ ʁətuʁn/) is a commune in the Ardennes department in northern France.