Irish Land Legislation Since 1845. (New York: Ginn, 1892)
Essays on the Civil War and Reconstruction and Related Topics (1897, 2nd ed. 1904)
History of Political Theories, Ancient and Mediœval (3 vol., 1902—1920)
History of Political Theories from Luther to Montesquieu (1905)
Reconstruction, Political and Economic, 1865—1877 (1907)
A Sketch of Carl Schurz’s Political Career, 1869—1906 (with Frederic Bancroft; 1908)
Paying for Alaska (1912)
The British Empire and the United States; a review of their relations during the century of peace following the treaty of Ghent, by William Archibald Dunning with an introduction by the Right Honourable Viscount Bryce, O.M., and a preface by Nicholas Murray Butler (New York: C. Scribner’s Sons, 1914)
Studies in Southern History and Politics (1914)
A History of Political Theories from Rousseau to Spencer (New York: Johnson Reprint Corp., 1972)