Swanley is a town and civil parish in the Sevenoaks District of Kent, England, 16 miles (26 km) southeast of central London, adjacent to the Greater London boundary and within the M25 motorway periphery. The population at the 2021 census was 17,826.

Sevenoaks is a local government district in west Kent, England. Its council is based in the town of Sevenoaks.