Name Locale Remarks Date
Philander Chase Knox Guantanamo, Santiago, Havana Met with President Gomez and Secretary of State Sanguily; returned to U.S. April 16. April 5–13, 1912
Frank Billings Kellogg Havana Attended the Sixth International Conference of American States with President Coolidge. Left U.S. January 14; returned January 20. January 15–17, 1928
Cordell Hull Havana Attended Conference of American States. Left U.S. July 19; returned August 1. July 20–30, 1940
Edward Reilly Stettinius Havana Official visit. Returned to U.S. March 10. March 9, 1945
John Forbes Kerry Havana Formally inaugurated the U.S. Embassy. Met with Foreign Minister Bruno Eduardo Rodrigues Parilla. August 14, 2015
John Forbes Kerry Havana Accompanied President Obama. March 21–22, 2016