Llandysul, also spelt Llandyssul, is a town and community in the county of Ceredigion, Wales. As a community it consists of the townships of Capel Dewi, Horeb, Pontsian, Pren-gwyn, Tregroes, Rhydowen and the town of Llandysul itself. Llandysul lies in south Ceredigion in the valley of the River Teifi and is visited for its fishing and canoeing. The community had a population of 2732, as of 2011. The village itself has a population of 1484.