William Kirkpatrick Magee (16 January 1868 – 9 May 1961), was an Irish author, editor, and librarian, who as an essayist and poet adopted the pen-name of John Eglinton. He became head librarian of the National Library of Ireland, after opposing the "cultural nationalism" of his time. From 1904 to 1905 he edited the literary journal Dana and was the biographer of George William Russell ("Æ").