Dartford Rural District was a rural district with an area of 34,037 acres (138 km2) in the county of Kent, England. In 1971 it had a population of 64,561 and an electorate of 43,911. At dissolution it was the most populous rural district council in Kent, but had once been larger, having lost territory when Crayford Urban District was created in 1920, and Swanscombe Urban District in 1926.