Percy Wyndham Lewis (18 November 1882 – 7 March 1957) was an English painter and author (he dropped the name 'Percy', which he disliked). He was a co-founder of the Vorticist movement in art, and edited the literary magazine of the Vorticists, BLAST. His novels include his pre-World War I-era novel Tarr (set in Paris), and The Human Age, a trilogy comprising The Childermass (1928), Monstre Gai and Malign Fiesta (both 1955), set in the afterworld. A fourth volume of The Human Age, The Trial of Man, was begun by Lewis but left in a fragmentary state at the time of his death. He also wrote two autobiographical volumes, Blasting and Bombardiering (1937) and Rude Assignment: A Narrative of my Career Up-to-Date (1950).
Lewis was reputedly born on his father's yacht off the Canadian province of Nova Scotia. His British mother and American father separated about 1893. His mother subsequently returned to England, where Lewis was educated, first at Rugby School, then at the Slade School of Art, University College, London, before spending most of the 1900s travelling around Europe and studying art in Paris.