| Country: | Wales |
| Official Name: | Brithdir |
| Coordinates: | 52.6139°N -3.1886°W |
| Cardiff Distance Mi: | 78 |
| Cardiff Distance Km: | 126 |
| London Distance Mi: | 151 |
| London Distance Km: | 243 |
| Unitary Wales: | Powys |
| Community Wales: | Berriew |
| Constituency Welsh Assembly: | Montgomeryshire |
| Constituency Westminster: | Montgomeryshire |
| Post Town: | WELSHPOOL |
| Postcode District: | SY21 |
| Postcode Area: | SY |
| Os Grid Reference: | SJ 1962 0245 |
Brithdir is an area in the community of Berriew, Powys, Wales, which is 78 miles (126 km) from Cardiff and 151 miles (243 km) from London.[1] It lies to the north-east of Berriew and is noted for its motte and bailey castle.