| Foissy-sur-Vanne | |
| Commune Status: | Commune |
| Coordinates: | 48.225°N 3.5064°W |
| Insee: | 89171 |
| Postal Code: | 89190 |
| Arrondissement: | Sens |
| Canton: | Brienon-sur-Armançon |
| Mayor: | Jeanne Saincierge[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 95 |
| Elevation Max M: | 213 |
| Area Km2: | 15.75 |
Foissy-sur-Vanne (in French pronounced as /fwasi syʁ van/, literally Foissy on Vanne) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.