Coulsdon and Purley Urban District was a local government district in north east Surrey from 1915 to 1965. The local authority was Coulsdon and Purley Urban District Council.
Coulsdon and Purley was formed in 1915 from part of the abolished Croydon Rural District. It consisted of the main settlements of Coulsdon and Purley, both in the parish of Coulsdon, along with the parish of Sanderstead and (from 1933) Farleigh.
In 1965, despite vigorous opposition from residents, the urban district was abolished and its former area was merged with that of the County Borough of Croydon, to became the London Borough of Croydon in the newly-formed Greater London. In 1969 the Greater London, Kent and Surrey Order 1968 transferred Farleigh back to Surrey to form part of the Godstone Rural District.