Anglesey Abbey is a country house, formerly a priory, in the village of Lode, 5 ½ miles (8.8 km) northeast of Cambridge, England. The house and its grounds are owned by the National Trust and are open to the public as part of the Anglesey Abbey, Garden & Lode Mill property, although some parts remain the private home of the Fairhaven family.

The 98 acres (400,000 m²) of landscaped grounds are divided into a number of walks and gardens, with classical statuary, topiary and flowerbeds. The grounds were laid out in an 18th-century style by the estate's last private owner, the 1st Baron Fairhaven, in the 1930s. A large pool, the Quarry Pool, is believed to be the site of a 19th-century coprolite mine. Lode Water Mill, dating from the 18th century was restored to working condition in 1982 and now sells flour to visitors.

The 1st Lord Fairhaven also improved the house and decorated its interior with a valuable collection of furniture, pictures and objets d'art.

A community of Augustinian canons built a priory here, known as Anglesea or Anglesey Priory, some time during the reign of Henry I (i.e., between 1100 and 1135), and acquired extra land from the nearby village of Bottisham in 1279. The canons were expelled in 1535 during the Dissolution of the Monasteries.

Anglesey /ˈæŋɡəlsi/ (Welsh: Ynys Môn) [ˈənɨs ˈmoːn], is an island and, as Isle of Anglesey, a county off the north west coast of Wales. Two bridges, spanning the Menai Strait, connect it to the mainland: the original Menai Suspension Bridge (carrying the A5), designed by Thomas Telford in 1826; and the more recently rebuilt Britannia Bridge (replacing the original designed by Robert Stephenson), which carries the A55 and the North Wales Coast Railway Line. Historian and author John Davies argues that it was during the tumultuous 10th century that the Norse name for Môn, Anglesey, came into existence; the name was later adopted into English after Anglo-Norman occupiers arrived to conquer the island during the Norman invasions of Gwynedd.

The name Anglesey was later used in the English language as a county name which included Holy Island and other nearby small islands. About half of the inhabitants can speak, read and write Welsh as well as English, and 70% have a knowledge of Welsh. Once the Welsh language was granted equal status in government with the Welsh Language Act of 1993, the representative constituency names for the island were changed to the Welsh name of the island, Ynys Môn (UK Parliament constituency) in the UK parliament, and Ynys Môn (Assembly constituency) in the National Assembly for Wales. With an area of 714 square kilometres (276 sq mi), Anglesey is the largest Welsh island, the sixth largest surrounding the island of Great Britain, and the largest island in the Irish Sea ahead of the Isle of Man.