Richard David Ellmann (March 15, 1918 – May 13, 1987) was a prominent American literary critic and biographer of the Irish writers James Joyce, Oscar Wilde, and William Butler Yeats. He won the U.S. National Book Award for Nonfiction for James Joyce (1959), which is one of the most acclaimed literary biographies of the 20th century; its 1982 revised edition was similarly recognised with the award of the James Tait Black Memorial Prize. A liberal humanist, Ellmann's academic work generally focused on the major modernist writers of the twentieth century.