| Passy-sur-Marne | |
| Commune Status: | Commune |
| Arrondissement: | Château-Thierry |
| Canton: | Essômes-sur-Marne |
| Insee: | 02595 |
| Postal Code: | 02850 |
| Mayor: | Alain Navarre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Région de Château-Thierry |
| Coordinates: | 49.0625°N 3.5717°W |
| Elevation M: | 82 |
| Elevation Min M: | 62 |
| Elevation Max M: | 229 |
| Area Km2: | 3.71 |
Passy-sur-Marne (pronounced as /fr/, literally Passy on Marne) is a commune in the Aisne department in Hauts-de-France in northern France.