Porth Wen Brickworks is a now disused Victorian brickworks which produced fire bricks, made from quartzite used to line steel-making furnaces. The substantial remains include a number of buildings and the remains of some of the machinery, but has some damage from sea erosion. The site is a scheduled monument.
The brickworks is in a spectacular location on the western side of Porth Wen (English: White Bay) in the community of Llanbadrig in the north of Anglesey, and is about 2 km (1.2 miles) west of Porth Llechog and 3 km (1.9 miles) north-east of Cemaes. The brickworks was established because of the readily available quartzite from the nearby quarries, a major component of fire bricks.
As with much of coastline of Anglesey, the brickworks lies within the area of the Anglesey Area of Outstanding Natural Beauty.
The brick works a short walk from The Old Post Office Bull Bay