West Dean Rural District was a rural district in Gloucestershire, England, from 1894 to 1974. It comprised a number of civil parishes, including, confusingly, one called West Dean, and gained further territory in 1935.
It was formed from the part of the Monmouth rural sanitary district that was in Gloucestershire (the rest, in Monmouthshire, becoming part of Monmouth Rural District).
It consisted of the following civil parishes, listed with their population in 1961:English Bicknor: 457
Coleford (1935–1974): 3,546
Lydbrook (1935–1974): 2,465
West Dean: 9,939
Coleford parish, gained in 1935, was previously an urban district. The parish of Lydbrook was a new creation; it had previously formed part of the East Dean civil parish and was transferred from the East Dean and United Parishes Rural District.
The district was abolished in 1974 when its former area became part of the Forest of Dean district, under the Local Government Act 1972.