| Fessy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Fessy.svg |
| Arrondissement: | Thonon-les-Bains |
| Canton: | Sciez |
| Insee: | 74126 |
| Postal Code: | 74890 |
| Mayor: | Patrick Condevaux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Thonon Agglomération |
| Coordinates: | 46.275°N 6.411°W |
| Area Km2: | 8.5 |
Fessy is a commune in the Haute-Savoie department and Auvergne-Rhône-Alpes region of eastern France.