Hardt, D. Brent, 1962-

David Brent Hardt (born 1962) is an American career Senior Foreign Service Officer who served in the Western Hemisphere, Europe, and in Political-Military assignments. Hardt currently serves as the State Department faculty advisor to the president of the Naval War College and a professor in the National Security Affairs department. From 2011-2014 he served as U.S. Ambassador Extraordinary and Plenipotentiary to the Cooperative Republic of Guyana and Plenipotentiary Representative of the United States to the Caribbean Community (CARICOM). He most recently served as Chargé d'Affaires ad interim at the U.S. Embassy in Paris, France beginning in August 2017. Prior to his arrival in Paris, he served as Foreign Policy Advisor to the Commander of U.S. Central Command and as Foreign Policy Advisor to the Commander of U.S. Special Operations Command. Other assignments include service as Chargé d’Affaires at the U.S. Embassy to Barbados and the Eastern Caribbean from 2009-2011, and Deputy Chief of Mission and Chargé d’Affaires at U.S. Embassies in The Bahamas (2005-2008) and the Holy See in Rome (2002-2005).

Hardt joined the U.S. Foreign Service in 1988, serving in Berlin, The Hague, and the Caribbean. In the Netherlands he participated as an exchange diplomat within the Netherlands Ministries of Foreign Affairs and Defense. In Washington, he served as Team Leader for NATO Policy in the State Department's Office of European Political and Security Affairs, where he was responsible for issues of NATO enlargement, NATO-Russia, NATO-Ukraine and European Security and Defense Policy issues. He was confirmed by the Senate Foreign Relations Committee on June 11, 2011 and was sworn in as Ambassador to Guyana on August 19, 2011, serving until July 6, 2014.

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