Maenaddwyn

 Maenaddwyn is a village in the community of Llanddyfnan, in Anglesey, in north-west Wales. Maenaddwyn has an elevation of 98.6 m.

There is a standing stone between the village and Capel Coch. Maenaddwyn means stone of Addwyn, although the original stone was removed but another stone located south is popularly called "Maen Addwyn".