The London Borough of Barking and Dagenham is a London borough in East London. It lies around 9 miles (14.4 km) east of Central London. It is an Outer London borough and the south is within the London Riverside section of the Thames Gateway; an area designated as a national priority for urban regeneration. At the 2011 census it had a population of 187,000, the majority of which are within the Becontree estate. The borough's three main towns are Barking, Chadwell Heath and Dagenham. The local authority is the Barking and Dagenham London Borough Council. Barking and Dagenham was one of six London boroughs to host the 2012 Summer Olympics.

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.