| Ouainville | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason_ville_fr_Ouainville_(Seine-Maritime).svg |
| Arrondissement: | Dieppe |
| Canton: | Saint-Valery-en-Caux |
| Insee: | 76488 |
| Postal Code: | 76450 |
| Mayor: | Bruno Thune[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Côte d'Albâtre |
| Coordinates: | 49.7861°N 0.5911°W |
| Elevation M: | 109 |
| Elevation Min M: | 71 |
| Elevation Max M: | 116 |
| Area Km2: | 7.01 |
Ouainville (in French pronounced as /wɛ̃vil/) is a commune in the Seine-Maritime department in the Normandy region in northern France.
A farming village situated in the Pays de Caux at the junction of the D471 and the D71 roads, some 29miles southwest of Dieppe.