| Désix | |
| Pushpin Map: | France#France Occitanie |
| Mouth: | Agly |
| Mouth Coordinates: | 42.7587°N 2.5282°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Length: | 32.3km (20.1miles) |
The Désix is a river in the south of France. It is 32.3km (20.1miles) long. Its source is in Fenolheda, near Aussières peak. It flows through Rabouillet, Sournia, Pézilla-de-Conflent, Felluns and Trilla before it empties into the Agly near Ansignan .