| Saint-Mars-sur-la-Futaie | |
| Commune Status: | Commune |
| Arrondissement: | Mayenne |
| Canton: | Gorron |
| Insee: | 53238 |
| Postal Code: | 53220 |
| Mayor: | Maurice Roulette[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Bocage Mayennais |
| Coordinates: | 48.4328°N -1.0142°W |
| Elevation M: | 180 |
| Elevation Min M: | 135 |
| Elevation Max M: | 252 |
| Area Km2: | 21.45 |
Saint-Mars-sur-la-Futaie is a commune in the Mayenne department in north-western France.[2] It is notable as the site of the oldest known tree in France, a Hawthorn growing alongside the church, and reputedly planted in the 3rd century.