This is a list of hundreds in the county of Dorset, England. Between the Anglo-Saxon period and the Local Government Act (1888), the county of Dorset was divided into hundreds and boroughs (and from the mediaeval period, liberties as well). The Local Government Act (1888) replaced the hundreds and liberties with urban and rural districts, based on the sanitary districts of the Poor Law Unions which existed in parallel with the hundreds/liberties from 1834.