Mydroilyn is a village in the county of Ceredigion, Wales, located in the historic county of Cardiganshire. It is situated inland, a few miles east of the Cardigan Bay coastline, and falls within the community of Llanarth.
The village is primarily rural, surrounded by agricultural land and scattered farmsteads typical of West Wales. Mydroilyn serves as a local hub for its immediate vicinity, providing limited services to residents.
One notable institution in the village is Ysgol Mydroilyn, a Welsh-medium primary school that serves the educational needs of children from Mydroilyn and the surrounding rural area. Like many Welsh villages, Mydroilyn historically featured chapels, reflecting the strong nonconformist traditions of the region.
Mydroilyn's name is Welsh, and its etymology likely relates to its geographical features, though a definitive interpretation of "Mydroilyn" is not widely documented. The village is connected to larger towns such as Aberaeron and New Quay by local road networks.