| Fontjoncouse | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Fontjoncouse 11.svg |
| Arrondissement: | Narbonne |
| Canton: | Les Corbières |
| Insee: | 11152 |
| Postal Code: | 11360 |
| Mayor: | Christophe Tena[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Corbières Salanque Méditerranée |
| Coordinates: | 43.0492°N 2.7892°W |
| Elevation M: | 307 |
| Elevation Min M: | 69 |
| Elevation Max M: | 420 |
| Area Km2: | 27.35 |
Fontjoncouse (pronounced as /fr/; oc|Fontjoncosa) is a commune in the Aude department in southern France.
Fontjoncouse has gained a reputation in the culinary world, as it is the location of Gilles Goujon's three-Michelin starred restaurant, L'Auberge du Vieux Puits.