| Saint-Jean-de-Fos | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Jean-de-Fos (Hérault).svg |
| Arrondissement: | Lodève |
| Canton: | Gignac |
| Insee: | 34267 |
| Postal Code: | 34150 |
| Mayor: | Pascal Delieuze[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Vallée de l'Hérault |
| Coordinates: | 43.7017°N 3.5517°W |
| Elevation M: | 95 |
| Elevation Min M: | 30 |
| Elevation Max M: | 528 |
| Area Km2: | 14.19 |
Saint-Jean-de-Fos (Languedocien: Sant Joan de Fòrcs) is a commune in the Hérault department in the Occitanie region in southern France.