The Metropolitan Borough of Deptford was a metropolitan borough in the County of London between 1900 and 1965, when it became part of the London Borough of Lewisham along with the Metropolitan Borough of Lewisham.

Lewisham is a London borough in south-east London, England. It forms part of Inner London. The principal settlement of the borough is Lewisham. The local authority is Lewisham London Borough Council, based in Catford. The Prime Meridian passes through Lewisham. Blackheath, Goldsmiths, University of London and Millwall F.C. are located within the borough.