| Coordinates: | 50.993°N -3.643°W |
| Country: | England |
| Official Name: | Roachill |
| Static Image Name: | Knowstone,_Roachill_-_geograph.org.uk_-_240743.jpg |
| Static Image Caption: | Knowstone, Roachill |
| Civil Parish: | Knowstone |
| Shire District: | North Devon |
| Shire County: | Devon |
| Region: | South West England |
| Os Grid Reference: | SS8548623560 |
| Post Town: | TIVERTON |
| Postcode District: | EX16 9J |
| Postcode Area: | EX |
| Constituency Westminster: | North Devon |
Roachill is a hamlet in the civil parish of Knowstone in the North Devon district of Devon, England. Its nearest town is Tiverton, which lies approximately south-west from the hamlet, just off the A361 road.