| Country: | Wales |
| Official Name: | Llanddulas |
| Coordinates: | 53.289°N -3.641°W |
| Static Image Name: | Llanddulas from cefn-yr-ogof.jpg |
| Static Image Caption: | Llanddulas from Cefn-yr-Ogof |
| Population: | 1,542 |
| Population Ref: | (2011) |
| Community Wales: | Llanddulas and Rhyd-y-foel |
| Unitary Wales: | Conwy |
| Constituency Welsh Assembly: | Clwyd West |
| Constituency Westminster: | Clwyd North |
| Post Town: | ABERGELE |
| Postcode District: | LL22 |
| Postcode Area: | LL |
| Dial Code: | 01492 |
| Os Grid Reference: | SH906781 |
Llanddulas is a village in Conwy county borough, Wales, midway between Old Colwyn and Abergele and next to the North Wales Expressway in the community of Llanddulas and Rhyd-y-Foel. The village lies beneath the limestone hill of Cefn-yr-Ogof (670 ft). This hill has large caves, and quarrying of limestone was formerly the main industry of the village, with crushed stone being exported from the 200 m long jetty.
According to figures from the 2011 census, Llanddulas, combined with nearby village Rhyd y Foel, had a population of 1,542, with around 23% of the population having some knowledge of the Welsh language.[1]
Llanddulas is notable as being the place where Richard II was betrayed in 1399.[2] and is also the birthplace of Lewis Valentine. Between 1889 and 1952 the village had its own railway station.
According to legend, a cave on the mountain of Pen y Cefn was once the abode of the Devil, until the people of Llanddulas performed an exorcism at the cave to drive him away.[3] Llanddulas Limestone and Gwrych Castle Wood is a Site of Special Scientific Interest.
In February 1990 a storm and high tide caused extensive flooding to the east of here, especially at Towyn and Kinmel Bay.[4] [5] New coastal defence works were built along 7 miles of coast from Old Colwyn to the River Clwyd. At Llanddulas these consist of Dolos concrete.
At Northern Towers, a gateway to Gwrych Castle, a battle is commemorated with four plaques. (See photograph bottom of page).