| Mars | |
| Commune Status: | Commune |
| Arrondissement: | Tournon-sur-Rhône |
| Canton: | Haut-Eyrieux |
| Insee: | 07151 |
| Postal Code: | 07320 |
| Mayor: | Françoise Roche[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Val'Eyrieux |
| Coordinates: | 45.0222°N 4.3219°W |
| Elevation M: | 1100 |
| Elevation Min M: | 759 |
| Elevation Max M: | 1138 |
| Area Km2: | 18.69 |
Mars is a commune in the Ardèche department in southern France.
The river Lignon du Velay forms part of the commune's northwest border.