| Gruissan | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Gruissan (Aude).svg |
| Arrondissement: | Narbonne |
| Canton: | Narbonne-2 |
| Insee: | 11170 |
| Postal Code: | 11430 |
| Mayor: | Didier Codorniou[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Grand Narbonne |
| Coordinates: | 43.1078°N 3.0889°W |
| Elevation M: | 2 |
| Elevation Min M: | 0 |
| Elevation Max M: | 200 |
| Area Km2: | 43.65 |
Gruissan (pronounced as /fr/; oc|Grussan) is a commune in the Aude department in southern France. The historian Émile Raunié (1854–1911) was born in Gruissan.
Situated on the Mediterranean coast of Southern France, Gruissan is situated in the Parc naturel régional de la Narbonnaise en Méditerranée. Traditionally a fishing village, the circular town is built around the former castle; a 10th-century château of which only the Tour Barberousse (Redbeard Tower) remains.[2]