Armin Henry Meyer (19 January 1914, in Fort Wayne, Indiana – 13 August 2006) was an American diplomat who served as United States Ambassador to Lebanon (1961 to 1965), United States Ambassador to Iran (1965-1969), and United States Ambassador to Japan (1969-1972). Meyer's parents were Armin P., a Lutheran minister, and Leona Buss Meyer. Leona died when Armin was three and then he was raised by three aunts in Lincoln, Illinois.