| Country: | England |
| Map Type: | Cornwall |
| Region: | South West England |
| Official Name: | Gwallon |
| Civil Parish: | Marazion |
| Unitary England: | Cornwall |
| Lieutenancy England: | Cornwall |
| Os Grid Reference: | SW525319 |
| Coordinates: | 50.135°N -5.465°W |
| Postcode Area: | TR |
| Postcode District: | TR17 |
| Hide Services: | yes |
Gwallon is a hamlet in the parish of Marazion, Cornwall, England.[1] [2] It is in the civil parish of St Hilary.