"O Captain! My Captain!" is an extended metaphor poem written by Walt Whitman in 1865 about the death of U.S. president Abraham Lincoln. Well received upon publication, the poem was Whitman's first to be anthologized and the most popular during his lifetime. Together with "When Lilacs Last in the Dooryard Bloom'd", "Hush'd Be the Camps To-Day", and "This Dust Was Once the Man", it is one of four poems written by Whitman about the death of Lincoln.