Talsarn is a hamlet in the community of Nantcwnlle, Ceredigion, Wales. It lies some 16 miles (26 km) south of Aberystwyth, 64 miles (103 km) north-west of Cardiff, and 178 miles (286 km) from London. It is situated almost half-way between the towns of Lampeter and Aberaeron on the Ceredigion coast. The River Aeron passes close to Talsarn as it makes its way to the sea at Aberaeron.
Notable archaeological discoveries have been made in the district, including Stone Age tools and a medieval convent, cemetery and Tudor mansion.Talsarn boasts four mansions in its vicinity: Llanllyr, Abermeurig, Plas Trefilan and Plas Gelli, as well as Ty Mawr, a substantial 17th C. farmhouse which sits at the centre of the hamlet, and Trefilan Castle “a strong castle mound that can be associated with a princely house” of the medieval period. Little remains of the castle, except its mound, which is close to St. Hilary's parish church in Trefilan.Capel Hermon Methodist Chapel lies outside Talsarn, just off the road from Trefilan to Cilcennin.The hamlet's name may derive from the Roman road Sarn Helen, which runs nearby, though it's also been noted that where a medieval road crossed soft ground, a "sarn of logs and rushes were required. Places that bear such names as Sarnau, Pensarn and Talsarn denote spots that topographically conform to this description.” The W00002862 Output Area's (which includes Talsarn) population can be found here: