Teddington is an affluent suburb of London in the London Borough of Richmond upon Thames. Historically an ancient parish in the county of Middlesex and situated close to the border with Surrey, the district became part of Greater London in 1965. In 2021, The Sunday Times named Teddington as the best place to live in London.

The London Borough of Richmond upon Thames in southwest London, England, forms part of Outer London and is the only London borough on both sides of the River Thames. It was created in 1965 when three smaller council areas amalgamated under the London Government Act 1963. It is governed by Richmond upon Thames London Borough Council and is divided into nineteen wards. The population is 198,019 and the major settlements are Barnes, East Sheen, Mortlake, Kew, Richmond, Twickenham, Teddington and Hampton.