Dorset Police is the territorial police force responsible for policing the English county of Dorset in the south-west of England.
Dorset County Constabulary was formed in 1855. On 1 October 1967 it merged with Bournemouth Borough Police to form Dorset and Bournemouth Constabulary. On 1 April 1974 this force took over some areas (mainly Christchurch and its hinterland) from Hampshire Constabulary and acquired its present name.