| Rosnay | |
| Commune Status: | Commune |
| Arrondissement: | Reims |
| Canton: | Fismes-Montagne de Reims |
| Insee: | 51468 |
| Postal Code: | 51390 |
| Mayor: | Nicolas Carnoye[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Reims |
| Coordinates: | 49.2544°N 3.8617°W |
| Elevation M: | 143 |
| Area Km2: | 5.54 |
Rosnay (in French pronounced as /ʁonɛ/) is a commune in the Marne department in north-eastern France. The composer Théodore Dubois was a native of Rosnay.
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