Llanddeiniolen
Llanddeiniolen is a community in the county of Gwynedd, Wales, and is from Cardiff and from London. It comprises the villages of Deiniolen, Bethel, Dinorwig, Rhiwlas, Brynrefail and Penisarwaun, and is the third-largest community by population in Gwynedd, with 5072 people in the 2011 census.
Castell Llanddeiniolen motte and bailey lies nearby. The name derives from the Welsh saint Deiniol.
