| Passy-sur-Seine | |
| Commune Status: | Commune |
| Coordinates: | 48.425°N 3.3494°W |
| Insee: | 77356 |
| Postal Code: | 77480 |
| Arrondissement: | Provins |
| Canton: | Provins |
| Mayor: | Florence Benoit[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Bassée - Montois |
| Elevation Min M: | 60 |
| Elevation Max M: | 74 |
| Area Km2: | 4.53 |
Passy-sur-Seine (in French pronounced as /pasi syʁ sɛn/, literally Passy on Seine) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.
Inhabitants are called Passytois.