| Ploisy | |
| Commune Status: | Commune |
| Arrondissement: | Soissons |
| Canton: | Soissons-2 |
| Insee: | 02607 |
| Postal Code: | 02200 |
| Mayor: | François Leroux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | GrandSoissons Agglomération |
| Coordinates: | 49.3322°N 3.2917°W |
| Elevation M: | 100 |
| Elevation Min M: | 73 |
| Elevation Max M: | 166 |
| Area Km2: | 2.87 |
Ploisy (pronounced as /fr/) is a commune in the Aisne department in Hauts-de-France in northern France.