The East End of London, often referred to within the London area simply as the East End, is the historic core of wider East London, east of the Roman and medieval walls of the City of London and north of the River Thames. It does not have universally accepted boundaries on its north and east sides, though the River Lea is sometimes seen as the eastern boundary. Parts of it may be regarded as lying within Central London. The term "East of Aldgate Pump" is sometimes used as a synonym for the area.

East London is the northeastern part of London, England, east of the ancient City of London and north of the River Thames as it begins to widen. East London developed as London's docklands and the primary industrial centre. The expansion of railways in the 19th century encouraged the eastward expansion of the East End of London and a proliferation of new suburbs. The industrial lands of East London are today an area of regeneration, which are well advanced in places such as Canary Wharf and ongoing elsewhere.