Abercarn is a town and community in Caerphilly county borough, Wales. It is 10 miles (16 km) northwest of Newport on the A467 between Cwmcarn and Newbridge, within the historic boundaries of Monmouthshire.

Cwmcarn is a village situated in the Ebbw valley in south Wales, in the historic boundaries of Monmouthshire. It grew with 19th-century coal mining, but is now known for its extensive mature forestry and greenery, that attract thousands of visitors and mountain biking enthusiasts each year.