| Vesancy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Vesancy (Ain).svg |
| Arrondissement: | Gex |
| Canton: | Gex |
| Insee: | 01436 |
| Postal Code: | 01170 |
| Mayor: | Bernard Mugnier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays de Gex |
| Coordinates: | 46.3494°N 6.0914°W |
| Elevation M: | 630 |
| Elevation Min M: | 582 |
| Elevation Max M: | 1490 |
| Area Km2: | 10.7 |
Vesancy (in French pronounced as /vəzɑ̃si/) is a commune in the Ain department in eastern France. The commune has an average elevation of above sea level.