Penrhyndeudraeth is a small town and community in the Welsh county of Gwynedd. The town is close to the mouth of the River Dwyryd on the A487 nearly 3 miles (4.8 km) east of Porthmadog, and had a population of 2,150 at the 2011 census, increased from 2,031 in 2001. The community includes the villages of Minffordd and Portmeirion.

The A487, officially the Fishguard to Bangor Trunk Road, is a trunk road in Wales that follows the coast from Haverfordwest, Pembrokeshire, in the south, to Bangor, Gwynedd, in the north.