| Oisy | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Guise |
| Insee: | 02569 |
| Postal Code: | 02450 |
| Mayor: | Jean-Louis Dufrenne[1] |
| Term: | 2021 - 2026 |
| Intercommunality: | Thiérache Sambre et Oise |
| Coordinates: | 50.0217°N 3.67°W |
| Elevation M: | 154 |
| Elevation Min M: | 137 |
| Elevation Max M: | 161 |
| Area Km2: | 10.79 |
Oisy (pronounced as /fr/) is a commune in the Aisne department in Hauts-de-France in northern France.