| Country: | Wales |
| Official Name: | Maen-y-groes |
| Coordinates: | 52.2022°N -4.3652°W |
| Cardiff Distance Mi: | 71 |
| Cardiff Distance Km: | 114.3 |
| London Distance Mi: | 187 |
| London Distance Km: | 300.9 |
| Unitary Wales: | Ceredigion |
| Community Wales: | Llanllwchaiarn |
| Constituency Welsh Assembly: | Ceredigion |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | Ceinewydd |
| Postcode District: | SA45 |
| Postcode Area: | SA |
| Os Grid Reference: | SN 3846 5864 |
Maen-y-groes is a hamlet in the community of Llanllwchaiarn, Ceredigion, Wales, which is 71 miles (114.3 km) from Cardiff and 187 miles (300.9 km) from London. Maen-y-groes is represented in the Senedd by Elin Jones (Plaid Cymru) and is part of the Ceredigion constituency in the House of Commons.[1] [2]
The name derives from the Welsh language: "the stone of the Cross".