Greenwich is an early-established district of today's London, England and the administrative centre of the Royal Borough of Greenwich centred 5.5 miles (8.9 km) east south-east of Charing Cross.

Greenwich is generally described as being part of South-east London and sometimes as being part of East London. It is also one of the five boroughs of the London Docklands, connected to areas with docks of London historically by river and today to Canary Wharf and other buildings by the East London Line.