| Country: | Wales |
| Official Name: | Dyffryn Arth |
| Static Image: | Cross-roads at Pennant - geograph.org.uk - 210002.jpg |
| Coordinates: | 52.2443°N -4.1384°W |
| Cardiff Distance Mi: | 66.8 |
| Cardiff Distance Km: | 107.5 |
| London Distance Mi: | 178.4 |
| London Distance Km: | 287.1 |
| Unitary Wales: | Ceredigion |
| Community Wales: | Dyffryn Arth |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | ABERAERON |
| Postcode District: | SA46 |
| Postcode Area: | SA |
| Post Town1: | LLANON |
| Postcode District1: | SY23 |
| Postcode Area1: | SY |
| Os Grid Reference: | SN 5410 6284 |
| Population: | 1174 |
Dyffryn Arth is a community in the county of Ceredigion, Wales, and is 66.8 miles (107.5 km) from Cardiff and 178.4 miles (287.1 km) from London.[1] [2] In 2011 the population of Dyffryn Arth was 1174 with 49.7% of them able to speak Welsh.[3] It includes the villages of Aberarth, Pennant, Moelfryn and Cross Inn.