| Reuilly-Sauvigny | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Reuilly-Sauvigny.svg |
| Arrondissement: | Château-Thierry |
| Canton: | Essômes-sur-Marne |
| Insee: | 02645 |
| Postal Code: | 02850 |
| Mayor: | Daniel Saroul[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Région de Château-Thierry |
| Coordinates: | 49.0589°N 3.5583°W |
| Elevation M: | 67 |
| Elevation Min M: | 62 |
| Elevation Max M: | 241 |
| Area Km2: | 6.54 |
Reuilly-Sauvigny (pronounced as /fr/) is a commune in the Aisne department in Hauts-de-France in northern France.
The village is located in Condé-en-Brie, in the south of the Aisne department, bordering on the Marne department. About 10 kilometres to the east of the commune is Château-Thierry, which is located on a hillside in Marne.
Two surrounding fords meant it was easiest to cross la Marne at the top of the commune, making it a strategic point during the two World wars, during which Reuilly was very heavily damaged.
The Reuilly-Sauvigny coat of arms is emblazoned with:Green with a golden sword, three lioncubs stitched on a silver waving fabric