| Halloy | |
| Commune Status: | Commune |
| Arrondissement: | Beauvais |
| Canton: | Grandvilliers |
| Insee: | 60295 |
| Postal Code: | 60210 |
| Mayor: | Gilles Boyenval[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Picardie Verte |
| Coordinates: | 49.6542°N 1.9414°W |
| Elevation M: | 194 |
| Elevation Min M: | 187 |
| Elevation Max M: | 204 |
| Area Km2: | 3.84 |
Halloy (in French pronounced as /alwa/) is a commune in the Oise department in northern France.