Robert A. Dallek (born May 16, 1934) is an American historian specializing in the presidents of the United States, including Franklin D. Roosevelt, John F. Kennedy, Lyndon B. Johnson, and Richard Nixon. In 2004 he retired as a history professor at Boston University after previously having taught at Columbia University, the University of California, Los Angeles (UCLA), and Oxford University. He won the Bancroft Prize for his 1979 book Franklin D. Roosevelt and American Foreign Policy, 1932–1945, as well as other awards for scholarship and teaching.