Llanfairfechan ("Little St Mary's Parish") is a town and community in the Conwy County Borough, Wales. It is known as a seaside resort and had a population at the 2001 Census of 3,755, reducing to 3,637 at the 2011 Census. The history of the area dates back to at least Roman times, as demonstrated by the discovery of a large second century milestone, that is now preserved in the British Museum.