The Isle of Dogs is a large peninsula bounded on three sides by a large meander in the River Thames in East London, England, which includes the Cubitt Town, Millwall and Canary Wharf districts. The area was historically part of the Manor, Hamlet, Parish and, for a time, the wider borough of Poplar. The name had no official status until the 1987 creation of the Isle of Dogs Neighbourhood by Tower Hamlets London Borough Council. It has been known locally as simply "the Island" since the 19th century.

Cubitt Town is a district on the eastern side of the Isle of Dogs in London, England. This part of the former Metropolitan Borough of Poplar was redeveloped as part of the Port of London in the 1840s and 1850s by William Cubitt, Lord Mayor of London (1860–1862), after whom it is named. It is on the east of the Isle, facing the Royal Borough of Greenwich across the River Thames. To the west is Millwall, to the east and south is Greenwich, to the northwest Canary Wharf, and to the north — across the Blue Bridge — is Blackwall. The district is situated within the Blackwall & Cubitt Town Ward of Tower Hamlets London Borough Council.