| Billy-le-Grand | |
| Commune Status: | Commune |
| Arrondissement: | Reims |
| Canton: | Mourmelon-Vesle et Monts de Champagne |
| Insee: | 51061 |
| Postal Code: | 51400 |
| Mayor: | Fabien Charpentier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Reims |
| Coordinates: | 49.1092°N 4.2308°W |
| Elevation M: | 122 |
| Area Km2: | 7.26 |
Billy-le-Grand is a commune of the Marne department in northeastern France.