John Cecil Stephenson (18 September 1889, Bishop Auckland, County Durham – 1965, London) was a British abstract artist and pioneer of Modernism.
Cecil Stephenson was educated at Leeds School of Art from 1909–14, the last two years as a pupil-teacher. In 1914 he won a scholarship to the Royal College of Art and moved to London, at 6, the Mall Studios, near Hampstead, where he remained for the rest of his life.
In 1922, Stephenson was appointed Head of Art at Northern Polytechnic.
In 1928, his next door neighbour became Barbara Hepworth, who moved into 7, the Mall Studios with her first husband John Skeaping. His other friends and neighbours over the years included Piet Mondrian, Henry Moore, Herbert Read, Walter Gropius, Alexander Calder and Ben Nicholson.
In 1933, along with Ben Nicholson, Stephenson exhibited for the first time with the Seven and Five Society, and in 1935 he took part in the Seven & Five's first exhibition of entirely abstract art.
In 1937, Stephenson contributed a page to Ben Nicholson, Leslie Martin and Naum Gabo's influential Circle: an international survey of Constructivist art.
Stephenson's 1937 work Painting is in the Tate collection, two works are in the Imperial War Museum collection, and his Painting II (1937) was acquired by the Scottish National Gallery of Modern Art in 2008. His works can also be found in the collections of the Arts Council of Great Britain,Staatsgalerie Stuttgart, the National Museum, Warsaw, the British Museum, the V&A, the National Museum Wales and the Government Art Collection.