Ernst Franz Sedgwick Hanfstaengl (German pronunciation: [ˈɛʁnst hanfˈʃtɛŋl̩]; 2 February 1887 – 6 November 1975) was a German-American businessman and intimate friend of Adolf Hitler. He eventually fell out of favour with Hitler, however, and defected from Nazi Germany to the United States. He later worked for Franklin D. Roosevelt and was once engaged to the author Djuna Barnes.