| Luc-sur-Orbieu | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Luc-sur-Orbieu (Aude).svg |
| Arrondissement: | Narbonne |
| Canton: | Les Corbières |
| Insee: | 11210 |
| Postal Code: | 11200 |
| Mayor: | Yves Kosinski[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Région Lézignanaise, Corbières et Minervois |
| Coordinates: | 43.1775°N 2.7867°W |
| Elevation M: | 46 |
| Elevation Min M: | 29 |
| Elevation Max M: | 150 |
| Area Km2: | 9.88 |
Luc-sur-Orbieu (in French pronounced as /lyk syʁ ɔʁbjø/, literally Luc on Orbieu; Occitan (post 1500);: Luc d'Orbiu) is a commune in the Aude department in southern France.
The village lies on the right bank of the Orbieu, which forms most of the commune's western border, then flows east through the northern part of the commune.