| Country: | Wales |
| Official Name: | Rhydwyn |
| Static Image: | File:The centre of Rhydwyn village - geograph.org.uk - 1271307.jpg |
| Static Image Caption: | village centre |
| Coordinates: | 53.37°N -4.534°W |
| Cardiff Distance Mi: | 142.5 |
| Cardiff Distance Km: | 229.4 |
| London Distance Mi: | 225.7 |
| London Distance Km: | 363.3 |
| Community Wales: | Cylch-y-Garn |
| Unitary Wales: | Anglesey |
| Constituency Welsh Assembly: | Ynys Môn |
| Constituency Westminster: | Ynys Môn |
| Post Town: | Holyhead |
| Postcode District: | LL65 |
| Postcode Area: | LL |
| Os Grid Reference: | SH 31517 88968 |
Rhydwyn (; Rhyd-Wyn) is a village in the community of Cylch-y-Garn, in the north west of Anglesey, Wales.[1] Rhydwyn is named after a little stream that once crossed the centre of the village. "Rhyd" meaning Ford and "Wyn" white. It now runs through a culvert under the road.