| Country: | England |
| Coordinates: | 50.917°N -0.902°W |
| Official Name: | West Marden |
| Civil Parish: | Compton |
| Shire District: | Chichester |
| Shire County: | West Sussex |
| Region: | South East England |
| Constituency Westminster: | Chichester |
| Post Town: | Chichester |
| Postcode District: | PO18 |
| Postcode Area: | PO |
| Os Grid Reference: | SU772136 |
West Marden is a hamlet in the Chichester district of West Sussex, England. It lies on the B2146 road 5 miles (8.2 km) north of Emsworth. It is in the civil parish of Compton.