| Name | Llanfaethlu |
| Alt names | Llanfaethly | source: Family History Library Catalog |
| Bodfardden | source: township in parish |
| Carneddor | source: township in parish |
| Trefadog | source: township in parish |
| Trefednyfed | source: township in parish |
| Trelywarch | source: township in parish |
| Type | Parish (ancient), Civil parish |
| Coordinates | 53.35°N 4.533°W |
| Located in | Anglesey, Wales ( - 1974) |
| Also located in | Gwynedd, Wales (1974 - 1996) |
| See also | Valley Rural, Anglesey, Wales | rural district in which it was located 1894-1974 |
