| Romeny-sur-Marne | |
| Commune Status: | Commune |
| Arrondissement: | Château-Thierry |
| Canton: | Essômes-sur-Marne |
| Insee: | 02653 |
| Postal Code: | 02310 |
| Mayor: | Pierre Bourgeois[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Charly sur Marne |
| Coordinates: | 48.9769°N 3.3372°W |
| Elevation M: | 65 |
| Elevation Min M: | 57 |
| Elevation Max M: | 208 |
| Area Km2: | 4.23 |
Romeny-sur-Marne (pronounced as /fr/, literally Romeny on Marne) is a commune in the Aisne department in Hauts-de-France in northern France.
The village is located along the Marne (right bank), 4.5 km east of Charly-sur-Marne, 2 km north of Nogent-l'Artaud and 12 km southwest of Château-Thierry.