| Country: | Wales |
| Official Name: | Cefn Llwyd |
| Coordinates: | 52.4285°N -3.9837°W |
| Cardiff Distance Mi: | 74 |
| Cardiff Distance Km: | 119.1 |
| London Distance Mi: | 176 |
| London Distance Km: | 283.3 |
| Unitary Wales: | Ceredigion |
| Community Wales: | Trefeurig |
| Constituency Welsh Assembly: | Ceredigion |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | Aberystwyth |
| Postcode District: | SY23 |
| Postcode Area: | SY |
| Os Grid Reference: | SN 6522 8302 |
Cefn-y-Llwyd is a hamlet in the community of Trefeurig, Ceredigion, Wales, which is 74 miles (119.1 km) from Cardiff and 176 miles (283.3 km) from London. Cefn Llwyd is represented in the Senedd by Elin Jones (Plaid Cymru) and is part of the Ceredigion constituency in the House of Commons.[1] [2]