| Static Image: | Engine house at United Downs - geograph.org.uk - 809161.jpg |
| Static Image Width: | 250px |
| Static Image Caption: | An engine house at United Downs |
| Country: | England |
| Region: | South West England |
| Map Type: | Cornwall |
| Official Name: | United Downs |
| Civil Parish: | Gwennap |
| Unitary England: | Cornwall |
| Lieutenancy England: | Cornwall |
| Os Grid Reference: | SW747413 |
| Coordinates: | 50.229°N -5.16°W |
| Hide Services: | yes |
United Downs is a hamlet in the parish of Gwennap, Cornwall, England, UK.[1] [2]
The hamlet is the site of the United Downs Deep Geothermal Power project, using heat from the earth to power up to 10,000 homes. There is an Industrial Park and Stock car racing track in the area.[3]