| Lançon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Lançon.svg |
| Arrondissement: | Vouziers |
| Canton: | Attigny |
| Insee: | 08245 |
| Postal Code: | 08250 |
| Mayor: | Eric Haulin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Ardennaise |
| Coordinates: | 49.2758°N 4.8747°W |
| Elevation M: | 115 |
| Elevation Min M: | 107 |
| Elevation Max M: | 218 |
| Area Km2: | 8.24 |
Lançon (in French pronounced as /lɑ̃sɔ̃/) is a commune in the Ardennes department in northern France.