| Saint-Fergeux | |
| Commune Status: | Commune |
| Arrondissement: | Rethel |
| Canton: | Château-Porcien |
| Insee: | 08380 |
| Postal Code: | 08360 |
| Mayor: | David Vilain[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.5639°N 4.2136°W |
| Elevation M: | 100 |
| Area Km2: | 25.5 |
Saint-Fergeux is a commune in the Ardennes department in northern France.