| Country: | England |
| Coordinates: | 50.9555°N -0.4845°W |
| Official Name: | Marehill |
| Civil Parish: | Pulborough |
| Shire District: | Horsham |
| Shire County: | West Sussex |
| Region: | South East England |
| Constituency Westminster: | Arundel and South Downs |
| Os Grid Reference: | TQ065184 |
Marehill is a hamlet in the Horsham District of West Sussex, England. It lies on the A283 road 0.6 miles (1 km) east of Pulborough.