| Fos | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Fos (Hérault).svg |
| Arrondissement: | Béziers |
| Canton: | Cazouls-lès-Béziers |
| Insee: | 34104 |
| Postal Code: | 34320 |
| Mayor: | Francis Vabre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Les Avant-Monts |
| Coordinates: | 43.5669°N 3.2464°W |
| Elevation M: | 30 |
| Elevation Min M: | 171 |
| Elevation Max M: | 464 |
| Area Km2: | 6.58 |
Fos (in French pronounced as /fɔs/; Languedocien: Fòs) is a commune in the Hérault department in southern France.
Fos is one of the seven communes which produces Faugères AOC wine.