| Seraincourt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Seraincourt (Val-d'Oise).svg |
| Coordinates: | 49.0361°N 1.8683°W |
| Arrondissement: | Pontoise |
| Canton: | Vauréal |
| Mayor: | Anne-Marie Maurice[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 26 |
| Elevation Max M: | 124 |
| Area Km2: | 11.28 |
| Insee: | 95592 |
| Postal Code: | 95450 |
Seraincourt (in French pronounced as /səʁɛ̃kuʁ/) is a commune in the Val-d'Oise department in Île-de-France in northern France.