| Country: | Wales |
| Official Name: | Plas Gwyn |
| Coordinates: | 53.2798°N -4.2088°W |
| Cardiff Distance Mi: | 131.8 |
| Cardiff Distance Km: | 212 |
| London Distance Mi: | 211.2 |
| London Distance Km: | 339.8 |
| Community Wales: | Pentraeth |
| Unitary Wales: | Anglesey |
| Constituency Welsh Assembly: | Ynys Môn |
| Constituency Westminster: | Ynys Môn |
| Post Town: | Pentraeth |
| Postcode District: | LL75 |
| Os Grid Reference: | SH 5283 7814 |
Plas Gwyn is an area in the community of Pentraeth, Anglesey, Wales, which is 131.8 miles (212 km) from Cardiff and 211.2 miles (339.8 km) from London.[1]
Plas Gwyn Hall is a Grade II* listed building. Its gardens and park are listed as Grade II on the Cadw/ICOMOS Register of Parks and Gardens of Special Historic Interest in Wales.