| Country: | Wales |
| Official Name: | Mynyddcerrig |
| Community Wales: | Llanddarog |
| Unitary Wales: | Carmarthenshire |
| Lieutenancy Wales: | Dyfed |
| Constituency Westminster: | Llanelli |
| Constituency Welsh Assembly: | Llanelli |
| Post Town: | LLANELLI |
| Postcode District: | SA14, SA15 |
| Postcode Area: | SA |
| Os Grid Reference: | SN505005 |
| Coordinates: | 51.7952°N -4.1664°W |
Mynyddcerrig is a village in Carmarthenshire, Wales.[1] Mynyddcerrig once had a primary school, Ysgol Mynyddcerrig, which closed in 2007,[2] however, it still has a working men's club and a public park.