| Troissereux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason TROISSEREUX.svg |
| Arrondissement: | Beauvais |
| Canton: | Mouy |
| Insee: | 60646 |
| Postal Code: | 60112 |
| Mayor: | Christian Demay[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Beauvaisis |
| Coordinates: | 49.4803°N 2.0436°W |
| Elevation Min M: | 68 |
| Elevation Max M: | 145 |
| Area Km2: | 14.1 |
Troissereux (in French pronounced as /tʁwasʁø/) is a commune in the Oise department in northern France.