The Culture of London concerns the arts, music, museums, festivals and other entertainment in London, the capital city of the United Kingdom. London is widely believed to be the culture capital of the world, although this title is disputed with a number of other cities internationally. The city is particularly renowned for its theatre quarter, and its West End theatre district has given the name to "West End theatre", the strand of mainstream professional theatre staged in the large theatres in London. London is also home to notable cultural attractions such as the British Museum, the Tate Galleries, the National Gallery, the Notting Hill Carnival and The O2.

A variety of landmarks and objects are cultural icons associated with London, such as Big Ben, Buckingham Palace and the tube map. Many other British cultural icons are strongly associated with London in the minds of visiting tourists, including the red telephone box, the routemaster bus, the black taxi and the Union Flag.

The city is home to more than 300 nationalities,^{[citation needed]} and the diversity of cultures have shaped the city's culture over time.

London ⁱ/ˈlʌndən/ is the capital city of England and the United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it Londinium. London's ancient core, the City of London, largely retains its square-mile mediaeval boundaries. Since at least the 19th century, the name London has also referred to the metropolis developed around this core. The bulk of this conurbation forms the London region and the Greater London administrative area, governed by the elected Mayor of London and the London Assembly.

London is a leading global city, with strengths in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism and transport all contributing to its prominence. It is the world's leading financial centre alongside New York City and has the fifth-largest city GDP in the world (and the largest in Europe). London has been described as a world cultural capital. It was the world's most visited city during 2011 and London Heathrow is the world's busiest airport by number of international passengers. London's 43 universities form the largest concentration of higher education in Europe. In 2012 London will become the first city to host the modern Summer Olympic Games three times.