| Ornaisons | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Ornaisons (Aude).svg |
| Arrondissement: | Narbonne |
| Canton: | Le Lézignanais |
| Insee: | 11267 |
| Postal Code: | 11200 |
| Mayor: | Gilles Casty[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Région Lézignanaise, Corbières et Minervois |
| Coordinates: | 43.1817°N 2.8381°W |
| Elevation M: | 35 |
| Elevation Min M: | 27 |
| Elevation Max M: | 163 |
| Area Km2: | 10.8 |
Ornaisons (in French pronounced as /ɔʁnɛzɔ̃/; Occitan (post 1500);: Ornasons) is a commune in the Aude department in southern France.
The village lies mainly on the left bank of the brook of Aussou, a tributary of the Orbieu, which forms part of the commune's western border, then flows northeast through its northern part.