| Saint-Martin-le-Vieil | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Martin-le-Vieil (Aude).svg |
| Arrondissement: | Carcassonne |
| Canton: | La Malepère à la Montagne Noire |
| Insee: | 11357 |
| Postal Code: | 11170 |
| Mayor: | Christian Vié[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Carcassonne Agglo |
| Coordinates: | 43.2956°N 2.1453°W |
| Elevation M: | 125 |
| Elevation Min M: | 130 |
| Elevation Max M: | 306 |
| Area Km2: | 13.25 |
Saint-Martin-le-Vieil (Languedocien: Sant Martin le Vièlh) is a commune in the Aude department in southern France.