| Country: | Wales |
| Official Name: | Meinir |
| Coordinates: | 53.3391°N -4.4061°W |
| Cardiff Distance Mi: | 138.5 |
| Cardiff Distance Km: | 222.9 |
| London Distance Mi: | 220.2 |
| London Distance Km: | 354.3 |
| Community Wales: | Llannerch-y-medd |
| Unitary Wales: | Anglesey |
| Constituency Welsh Assembly: | Ynys Môn |
| Constituency Westminster: | Ynys Môn |
| Post Town: | Llannerch-y-medd |
| Postcode District: | LL71 |
| Os Grid Reference: | SH 3990 8516 |
Meinir is a hamlet in the community of Llannerch-y-medd, Anglesey, Wales, which is 138.5 miles (222.9 km) from Cardiff and 220.2 miles (354.3 km) from London.
The name "Meinir" in the Welsh language means 'girl'.