William Duesbury (1725–1786) was an English enameller, in the sense of a painter of porcelain, who became an important porcelain entrepreneur, founder of the Royal Crown Derby and owner of porcelain factories at Bow, Chelsea, Derby and Longton Hall.

The Royal Crown Derby Porcelain Company is the oldest or second oldest remaining English porcelain manufacturer, based in Derby, England. The company, particularly known for its high-quality bone china, having produced tableware and ornamental items since approximately 1750. It was known as 'Derby Porcelain' until 1773, when it became 'Crown Derby', the 'Royal' being added in 1890.