Americans in the United Kingdom or American Britons includes emigrants from the United States who gain British citizenship, people from the United States who are or have become residents or citizens of the United Kingdom.
The 2001 UK Census recorded 158,434 people born in the United States. According to the 2011 UK Census, there were 173,470 US-born residents in England, 3,715 in Wales, 15,919 in Scotland, and 4,251 in Northern Ireland. The Office for National Statistics estimates that 197,000 US-born immigrants were resident in the UK in 2013.
The largest single local cluster of Americans in Britain recorded by the 2001 Census was in Mildenhall in north-west Suffolk – the site of RAF Mildenhall and nearby RAF Lakenheath. This is because of the legacy of the Cold War and NATO cooperation. 17.28 percent of Mildenhall's population were born in the US. In London, the majority of Americans are businesspeople and their families which ties in with the strong economic relations between London and New York City or Washington DC. Chelsea (where 6.53 percent of residents were born in the US in 2001) and Kensington (5.81 percent), have large American populations.
Prior to the end of the Cold War, the highest proportion of Americans resident in the United Kingdom per head of population was centred on the Scottish seaside town of Dunoon, Argyll and Bute, the former site of the Holy Loch US Navy base. At its height in the early 1990s around a quarter of Dunoon's population was American.
Some Americans in the UK are older, ex-servicemen who returned to Britain after being based in the UK during World War II.
African American immigration to the UK began as early as the late 18th century after American slaves failed in their attempt to defend the British Crown in the American Revolution. The Revolution began in the thirteen American colonies and United States in the late 1770s. The British promised freedom to any slave or rebel who fought the Americans on their behalf. African Americans made up over 20 per cent of the American population at the time, which was the second largest ethnic group in British North America only after the English and as many as 30,000 slaves escaped to British lines. The largest regiment was the Black Pioneers who followed troops under Sir General Henry Clinton. Working as soldiers, labourers, pilots, cooks, and musicians, they were a major part of the unsuccessful British war effort. African Americans who fought against the British were known as Black Patriots (modern day African Americans in the US), but rather if they were fighting for the Crown or American Independence both were mostly doing it in return for promises of freedom from enslavement or indentured servitude.
The British-American Commission identified the Black people who had joined the British before the surrender, and issued "certificates of freedom" signed by General Birch or General Musgrave. Those who chose to emigrate were evacuated by ship. The fallout of the Revolution resulted in an estimated 75,000 to 100,000 Black Americans scattering across the Atlantic world, profoundly affecting the development of Nova Scotia, the Bahamas, Jamaica, and the African nation of Sierra Leone as prominent leaders in the emerging freed black communities. To make sure no one attempted to leave who did not have a certificate of freedom, the name of any Black person on board a vessel, whether slave, indentured servant, or free, was recorded, along with the details of enslavement, escape, and military service, in a document called the Book of Negroes. Between 400 and 1,000 African Americans emigrated to London and were later given the title of Black Loyalist for their service in the British Armed forces and formed the core of the early Black British community.
Sean Lennon is a part-time resident in the United Kingdom and the U.S. He is the son of the Beatles singer British-born John Lennon and Japanese-born Yoko Ono, although Sean was born in New York City.
In 2001, 306 Puerto Rican born people alone were residing in the United Kingdom (the 19th most common birthplace amongst Latin American states). Notable British residents of Puerto Rican origin or descent include actress Micaela Nevárez and former Miss World, Wilnelia Merced.
Sir Richard Grenville captured the Roanoke Island Native American Raleigh (named for Sir Walter Raleigh) and brought him to Bideford following a skirmish in 1586. He had his baptism at Saint Mary the Virgin's Church in March 1588. He died from influenza in Grenville's house on 2 April 1589. His interment was at that same church five days later. Raleigh was the first Native American to have a Christian conversion and an English resting place.
Chief Powhatan's daughter, Pocahontas spent some of her life in London two years after she married English colonist John Rolfe. At age twenty-one, Pocahontas died due to an unknown disease. She was buried at St George's Church in Gravesend afterwards. Her son Thomas Rolfe lived in England until the age of 20 before returning to Virginia.
Lakota tribes arrived in England when they were part of Buffalo Bill's Wild West Show. Surrounded By the Enemy, a twenty-two-year-old Oglala gun-slinging and horse-riding stuntman and a year old boy named Red Penny died during the tour in 1887. Their interments were at West Brompton's cemetery. Brulé tribesman Paul Eagle Star died after breaking his ankle when he fell off a horse in Sheffield on 24 August 1891 at age twenty-seven. His interment was in West Brompton near the same plot as Surrounded. Fifty-nine-year-old Oglala Sioux, Long Wolf died during the tour due to pneumonia on 13 June 1892. His interment was in West Brompton. Two months later, a two-year-old girl named White Star Ghost Dog died when she fell from her mother's arms during horseback. Her remains shared the same grave as Long Wolf's remains. Long Wolf and White Star Ghost Dog's coffin were repatriated to the Pine Ridge Reservation in 1997. Two years later, Paul Eagle Star's coffin was repatriated to the Rosebud Indian Reservation. Tribal descendants include John Black Feather (Long Wolf's great grandson), Moses Eagle Star and Lucy Eagle Star (Paul Eagle Star's two grandchildren).
Blackfoot Sioux chief Charging Thunder came to Salford at age twenty-six as part of Buffalo Bill's Wild West Show in 1903. Like many Lakota tribesmen, Charging Thunder was an exceptional horseman and performed thrilling stunts in Buffalo Bill's show in front of huge crowds, on the site of what is now Lowry in Salford Quays. But when the show rolled out of town, he remained in the North West. He married Josephine, an American horse trainer who had just given birth to their first child, Bessie and together they settled in Darwen, before moving to Gorton. His name became George Edward Williams, after registering with the British immigration authorities to enable him to find work. Williams ended up as an elephant keeper at the Belle Vue Zoo. He died on 28 July 1929 from pneumonia at age fifty-two. His interment was in Gorton's cemetery.
Zoë Wanamaker is a US-born British actress of Jewish-Ukrainian ancestry, Louis Theroux is the son of American writer Paul Theroux, whilst Mika has a Lebanese mother and an American father born in Jerusalem.
American schools in the United Kingdom: