Charles Wigg (c. 1824 – 18 July 1899) was an English manufacturer of chemicals in Runcorn, Cheshire, England. After working as an export agent in Liverpool he joined with two managers of a Runcorn chemical factory to build what was initially known as the Old Quay Chemical Works, and later became Wigg Works. At first the works manufactured soap and alkali, but soon moved to extracting copper from pyrites ash, and later making bleaching powder and ferric oxide. During the later part of the 19th century it was one of the most successful businesses in Runcorn. Charles Wigg retired from the business shortly after it was taken over by the United Alkali Company and died eight years later. The site of the factory has been developed into a nature reserve called Wigg Island.