| Saint-Martin-de-l'Arçon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Martin-de-l'Arçon (Hérault).svg |
| Arrondissement: | Béziers |
| Canton: | Saint-Pons-de-Thomières |
| Insee: | 34273 |
| Postal Code: | 34390 |
| Mayor: | Thierry Salles-Blayac[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.5758°N 2.9839°W |
| Elevation M: | 282 |
| Elevation Min M: | 120 |
| Elevation Max M: | 1065 |
| Area Km2: | 4.22 |
Saint-Martin-de-l'Arçon (in French pronounced as /sɛ̃ maʁtɛ̃ də laʁsɔ̃/; Languedocien: Sant Martin de l'Arçon) is a commune in the Hérault department in the Occitanie region in southern France.