Coordinates: 52°02′28″N 4°18′34″W / 52.04114°N 4.30949°W / 52.04114; -4.30949
Llandysul is a small town and community in the county of Ceredigion, Wales. As a community it consists of the villages of Capel Dewi, Horeb, Pont Sian, Pren-gwyn, Tregroes, Rhydowen and the village of Llandysul itself. At the 2001 census the community had a population of 1484, reducing to 1,439 at the 2011 Census. Llandysul lies in the valley of the River Teifi and is visited for its fishing and canoeing.
Llandysul is also known as the home of Gwasg Gomer, one of the most prominent publishers of Welsh-interest and Welsh language books in Wales. The town is twinned with Plogonnec (Plogoneg) in Brittany, France.
Pencoedfoel is an Iron Age hillfort one mile northeast of Llandysul. An oval banked and ditched enclosure with double ramparts, about 160m by 128m, is defined by degraded banks and scarps on the summit of an isolated hill. Two halves of a bronze collar were found near here, possibly dating to the late 1st century BC or early 1st century AD.