The London Borough of Bromley is a borough in London, England. It borders the county of Kent, of which it formed part of until 1965. The borough's population in the 2021 census was 329,991. It is named after Bromley, its principal district. Other districts are Penge, Hayes, West Wickham, Chislehurst, Beckenham and Orpington. The local authority is Bromley London Borough Council.

Kent is a county in the South East England region, the closest county to continental Europe. It borders Essex across the entire estuary of the River Thames to the north; the French department of Pas-de-Calais across the Strait of Dover to the south-east; East Sussex to the south-west; Surrey to the west and Greater London to the north-west. The county town is Maidstone.