Trearddur Bay is a village south of Holyhead on the west coast of Holy Island off the north-west coast of Anglesey in Wales. At the 2001 census, it had a population of 1,858. The historical name for Trearddur Bay is Towyn Capel or Tywyn y Capel, and at the centre of the beach lies an ancient burial ground known by the old names and which was excavated in 2003.
It is best known for being the birthplace of the drummer of The Beatles, Ringo Starr. There are two general shops in the centre of the village, along with a garage, two golf courses (one 18-hole, and one small 9-hole), and many hotels including a large hotel, Trearddur Bay Hotel, which overlooks the beach.
On the two beaches — Porth Dafarch and the main beach—there are some shallow scuba diving sites, and the main beach is one of the tourist hotspots of Anglesey. There is excellent sea fishing in the area. Boat trips & fishing trips are available from the beach. Horse riding is available, as well as a snooker hall at the Beach Hotel.