Lligwy Burial Chamber is a Neolithic burial chamber in Lligwy, near the east coast of Anglesey, Wales, United Kingdom. It consists of a circle of upright stones, made into a low chamber by a very large roof slab estimated at 25 tonnes. Excavation in 1909 found the remains of some 15 to 30 people, and pottery suggesting a late Neolithic date.
Close to the village of Moelfre, the site is within a few metres of the road, where there is room to leave a single car for short periods.