Vaynol or Y Faenol is a country estate dating from the Tudor period near Y Felinheli in Gwynedd, North Wales. It has 1,000 acres (4.0 km2) of park, farmland, and gardens, with more than thirty listed buildings, surrounded by a wall which is 7 miles (11 km) long. "Y Faenol" means "the manor" and is a mutated form of the Welsh word maenol.

Y Felinheli, formerly known in English as Port Dinorwic, is a village and community beside the Menai Strait between Bangor and Caernarfon in Gwynedd, northwest Wales.