Tarr is a modernist novel by Wyndham Lewis, written in 1909–11, revised and expanded in 1914–15 and first serialized in the magazine The Egoist from April 1916 until November 1917. The American version was published in 1918, with an English edition published by the Egoist Press appearing shortly afterwards; Lewis later created a revised and final version published by Chatto and Windus in 1928.