Benjamin Lauder "Ben" Nicholson, OM (10 April 1894 – 6 February 1982) was a British painter of abstract compositions (sometimes in low relief), landscape and still-life.
In London, where his family had moved from Buckinghamshire in 1896, Nicholson met the sculptors Barbara Hepworth (to whom he was married from 1938 to 1951) and Henry Moore. On visits to Paris he met Mondrian, whose work in the neoplastic style was to influence him in an abstract direction, and Picasso, whose cubism would also find its way into his work. His gift, however, was the ability to incorporate these European trends into a new style that was recognizably his own. He first visited St Ives, Cornwall, in 1928 with his fellow painter Christopher Wood, where he met the fisherman and painter, Alfred Wallis. In Paris in 1933 he made his first wood relief, White Relief, which contained only right angles and circles. In 1937 he was one of the editors of Circle, an influential monograph on constructivism. He believed that abstract art should be enjoyed by the general public, as shown by the Nicholson Wall, a mural he created for the garden of Sutton Place in Guildford, Surrey.