The County class was a class of British guided missile destroyers, the first such warships built by the Royal Navy. Designed specifically around the Seaslug anti-aircraft missile system, the primary role of these ships was area air defence around the aircraft carrier task force in the nuclear-war environment.
Eight ships were built and entered service. Two served in the British naval task force in the Falklands War in 1982. After leaving British service, four ships were sold to the Chilean Navy and one to the Pakistan Navy.