John Dwight (d. 1703) was an English ceramic manufacturer, who founded the Fulham Pottery and pioneered the production of stoneware in England.
He is now thought to have been born in the years 1633 to 1636 at Todenham in Gloucestershire, the son of George Dwight, a farmer, and his wife, Joane Greenough. The family then, shortly afterwards, moved to North Hinksey. He studied at Oxford University, and worked as an assistant to Robert Boyle in the later 1650s.
In 1661 Dwight was appointed registrar and scribe to the diocese of Chester, and the same year he proceeded to the degree of B.C.L. at Christ Church, Oxford. He lived at Chester for some time, where he acted as secretary to successive bishops. At the end of the 1660s he fell out with John Wilkins, and turned to a new career.
Dwight was living in Wigan at the end of the 1660s, when he sold his church posts, and invested in a career as a potter. He moved to London, where he was supported by Boyle and Robert Hooke. In 1672 he was granted a patent of 14 years for "the mistery of transparent earthenware, commonly known by the names of porcelain or china, and of stoneware, vulgarly called Cologne ware". He then established the Fulham Pottery. The staple output was brown stoneware.
Ambitious to replace all imported ceramics by his own products, Dwight experimented on a large scale. He also took out a second patent, and attempted to enforce it with extensive litigation: the targets of his legal action included John Philip Elers and the Wedgwood brothers of Burslem.