Kilmarnock & Loudoun was a district council area which existed from 1975 to 1996. It was one of 19 district councils that delivered a range of local level services within the wider area of Strathclyde Region, which over this period was one of the 12 regions into which Scotland was divided.
Kilmarnock & Loudoun was one of the four district council areas within the Ayr sub-region of Strathclyde, and it was formed from the north eastern part of the traditional county of Ayrshire. The result was a district that included settlements such as Kilmarnock, Darvel, Galston, Newmilns and Stewarton. It was bordered by the districts of Cunninghame, Renfrew, Eastwood, East Kilbride, Cumnock & Doon Valley and Kyle & Carrick: all districts of Strathclyde.
When regions disappeared from the scene in a major reorganisation of Scottish local government in 1996, the district council area of Kilmarnock & Loudoun was joined with Cumnock & Doon Valley to become the unitary council area of East Ayrshire, one of the 32 unitary council areas into which Scotland has since been divided.