Cosway, Richard(kŏz`wā), 1740?–1821, English miniaturist. His work was elegant and modish and became highly popular in his day. There is a collection of his works in Windsor Castle. Perhaps best known is the portrait of Mme du Barry. A self-portrait is in the National Portrait Gallery, London. Cosway was married to the miniaturist Maria Hadfield.
See biography by G. C. Williamson (1897).