| Saint-Aignan | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Aignan 08.svg |
| Arrondissement: | Sedan |
| Canton: | Sedan-1 |
| Insee: | 08377 |
| Postal Code: | 08350 |
| Mayor: | Delphine Leonard[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | CA Ardenne Métropole |
| Coordinates: | 49.6533°N 4.8472°W |
| Elevation M: | 175 |
| Area Km2: | 7.74 |
Saint-Aignan (in French pronounced as /sɛ̃.t‿ɛɲɑ̃/) is a commune in the Ardennes department in northern France.