John Fleming (1919, Berwick-upon-Tweed – 2001, Tofori) was a British art historian, famous for his writing partnership with Hugh Honour. Their A World History of Art, is now in its seventh edition. Fleming's Robert Adam and His Circle in Edinburgh and Rome (1961) won the Bannister Fletcher Prize and the Alice Davis Hitchcock Medal.
Living in Asolo near Venice, Honour and Fleming began a productive writing partnership. They were commissioned by publisher Allen Lane to edit the Style and Civilisation series (begun 1967); the Architect and Society series (begun 1966); and the Art in Context series (begun 1972).
In 1962, Honour and Fleming moved to Villa Marchiò near Lucca where they remained for the rest of their lives. In 1966, they collaborated with Nikolaus Pevsner to produce The Penguin Dictionary of Architecture (2nd edition 1972), and in 1977 they wrote The Penguin Dictionary of Decorative Arts. A World History of Art followed in 1982 and the Venetian Hours of Henry James, Whistler and Sargent in 1991.