Mynachlog-ddu

Mynachlog-ddu () is a village in the Preseli Hills, Pembrokeshire and formerly a parish.

There are two places of worship in the parish: the Anglican church of St. Dogfael (sometimes, Dogmael), and Bethel, the Baptist meeting house. It is also the name of community council created from the civil parishes of Mynachlog-ddu and Llangolman in Pembrokeshire.

The village has limited attractions. There are 2 phone boxes, 3 post boxes, and a pub.

Caermeini, or more correctly Carn Menyn, part of the Presely range, is located here and was the source of the bluestones used in the inner circle of Stonehenge. In 2000/2001 a project was established to try and transport a piece of bluestone from the village to stonehenge. The project ended when the stone sank in the sea. It was lifted out a few months after, but the project was never resumed.