| Country: | Wales |
| Official Name: | Gadfa |
| Static Image Name: | Access road to Penterfyn-Gadfa - geograph.org.uk - 1277428.jpg |
| Static Image Caption: | An access road that runs west from the A5025 to Penterfyn-Gadfa. |
| Coordinates: | 53.383°N -4.3158°W |
| Cardiff Distance Mi: | 140 |
| Cardiff Distance Km: | 225.3 |
| London Distance Mi: | 218.8 |
| London Distance Km: | 352.1 |
| Community Wales: | Llaneilian |
| Unitary Wales: | Anglesey |
| Constituency Welsh Assembly: | Ynys Môn |
| Constituency Westminster: | Ynys Môn |
| Post Town: | Penysarn |
| Postcode District: | LL69 |
| Os Grid Reference: | SH 4607 8985 |
Gadfa is a hamlet in the community of Llaneilian, Anglesey, Wales, which is 140 miles (225.3 km) from Cardiff and 218.8 miles (352.1 km) from London.
The dispersed settlement has a scatter of buildings mainly along and to the west of the A5025, with a smaller number on the eastern side of the road.[1]