Kilmarnock and Loudoun is a local government district in Strathclyde Region, Scotland. It includes the industrial town of Kilmarnock and a number of smaller towns, including Darvel, Galston, and Stewarton.

Industries in Kilmarnock include engineering, whiskey blending and bottling, and the manufacture of carpets, knitwear, lace, and shoes. Dairy farming is also important.