Llanarth is a privately owned estate village and community within a conservation area in the Welsh county of Monmouthshire.

One of the earliest mentions of the village is in the Book of Llandaff, written in 1125 CE, where it is rendered with the spelling "Llangarth".

Settlement within the area potentially dates back to the 6th century CE.

[4] Just over a century later, in 2013, the church was declared redundant, owing to the unsustainable cost of necessary repairs.

Within the estate's forestry and land holdings are designated riding bridleways and routes that any horseback rider may use for a nominal fee.