| Saint-Denis-d'Aclon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Denis-d'Aclon (Seine-Maritime).svg |
| Arrondissement: | Dieppe |
| Canton: | Dieppe-1 |
| Insee: | 76572 |
| Postal Code: | 76860 |
| Mayor: | Philippe Lefebvre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Terroir de Caux |
| Coordinates: | 49.8672°N 0.9547°W |
| Elevation M: | 17 |
| Elevation Min M: | 8 |
| Elevation Max M: | 74 |
| Area Km2: | 2.42 |
Saint-Denis-d'Aclon (in French pronounced as /sɛ̃ dəni daklɔ̃/) is a commune in the Seine-Maritime department in the Normandy region in north-western France.
A small farming village situated by the banks of the river Saâne in the Pays de Caux, at the junction of the D27 and the D127 roads, some 7miles southwest of Dieppe.