Winsor & Newton (also abbreviated W&N) is an English manufacturing company based in London that produces a wide variety of fine art products, including acrylics, oils, watercolour, gouache, brushes, canvases, papers, inks, graphite and coloured pencils, markers, and charcoals.

Art products made by Winsor & Newton, distinguished by size, series, material and function (e.g. effects or process).

In Michel Bussi's 2011 detective novel Black Waterlilies (French: Nymphéas Noirs) set in Giverny, "Winsor and Newton" is frequently referenced, although it is imagined to be an American, rather than a British, company.

Karlheinz Stockhausen and his studio assistants read product names from the Winsor & Newton catalogue aloud in his electronic composition Hymnen.

In Leonard Pickard's novel The Rose of Paracelsus, a tube of "Winsor & Newton" indigo oil paint is used to make covert contact with the protagonist.