Coetan Arthur dolmen, also known as Arthur's Quoit (not to be confused with Carreg Coetan Arthur, near Newport) is the remains of a Neolithic burial chamber (also known as a quoit). It dates from around 3000 BCE. The site, situated on the hillside close to St Davids Head in Pembrokeshire, Wales, is the collapsed chamber of what is presumed to be a passage grave which also has a round barrow. The massive capstone measures approximately 6 metres by 2.5 metres and is supported on one side by an orthostat approximately 1.5 metres in height.
- "Coetan Arthur Burial Chamber, St David's Head; Royal Commission on the Ancient and Historic Monuments of Wales". RCAHMW. Retrieved 2009-06-21.
- Hole, Abigail (2004). Lonely Planet Guide to Wales. Lonely Planet. p. 168. ISBN 1-74059-424-X.
- Lynch, Frances (1997). Megalithic tombs and long barrows in Britain. Osprey. p. 67. ISBN 0-7478-0341-2.