Magee of Donegal is a clothing manufacturer and retailer based in Donegal, a town located in the south of County Donegal in the Province of Ulster in Ireland. The company is best known for their Donegal tweed, but also manufactures items from linen, wool and other materials. The company traces its origins to 1866, when the founder, John Magee, opened a clothing shop in Donegal Town. The company has supplied cloth for the uniforms of Ireland's state airline, Aer Lingus.