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.