| Gigny-Bussy | |
| Commune Status: | Commune |
| Arrondissement: | Vitry-le-François |
| Canton: | Sermaize-les-Bains |
| Insee: | 51270 |
| Postal Code: | 51290 |
| Mayor: | Pascale Chevallot[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.6069°N 4.5714°W |
| Elevation M: | 220 |
| Area Km2: | 22.45 |
Gigny-Bussy (pronounced as /fr/) is a commune in the Marne department in north-eastern France. The commune was formed by the merger of the former communes of Gigny-aux-Bois and Bussy-aux-Bois in 1966.