| Saint-Denis | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Denis (Aude).svg |
| Arrondissement: | Carcassonne |
| Canton: | La Malepère à la Montagne Noire |
| Insee: | 11339 |
| Postal Code: | 11310 |
| Mayor: | Michael Laurent[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.3608°N 2.2217°W |
| Elevation M: | 528 |
| Elevation Min M: | 280 |
| Elevation Max M: | 645 |
| Area Km2: | 8.21 |
Saint-Denis (in French pronounced as /sɛ̃ dəni/; Languedocien: Sant Danís) is a commune in the Aude department in southern France.