Dennis Gilmore Dalton is a professor of political science from the United States. From 1969 until 2008, Dalton was the Ann Whitney Olin Professor of Political Science at Barnard College, Columbia University. Dalton's work had a particular focus on the thought and leadership of Mahatma Gandhi and civil disobedience. Before his retirement from Barnard College at Columbia University, he gave lectures on political theory from Plato to the present, eastern and western philosophies. He began teaching at Barnard in 1969, teaching classes in classical and modern political theory.